48 Hours
48 Hours

Denise and Aaron Quinn Get the Last Word

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A couple is attacked as they slept. They later team up with law enforcement and get their assailant to confess to more crimes. Tracy Smith reports. To learn more about listener data and our privacy...

Transcript

EN

When you're 19, you think you know we're going to end up, but then life has a...

it's own, turned. Back in 1993, this young couple was camping. In the middle of the night,

β€œwe were awakened to someone hitting the back of our tent. They were ordered out of their tent”

by a stranger with a gun. A towel was put over my head and my hands and feet were tied up, and then my boyfriend was tied up. The suspect then carried the female away. He brought it down to this bridge, yes. You were fighting him as best you could. Yeah. I was trying to squirm away, and then I was sexually assaulted. In the middle of what he was trying to do, he said that he saw light and said he had to go. My boyfriend got me on tied. We out the police told him what

happened, and it very much seemed like they maybe didn't believe me. I reached out to them many times trying to find out. I did guys found anything. You know, do you know who did this? And nothing.

β€œShe's worried for the last 30-plus years that he was out there and he was going to return.”

In March of 2015, there was this really high profile kidnapping coming out of Vallejo, California. Denise Huskins went missing from her boyfriend, Erin Quinn's Hall. Kidnappers stormed into Quinn's the lay home house bound and drugged him. We could hear what's down to like other people downstairs. I was told that I was going to be taken. I'm told that there was a ransom demand to get Denise back. For the next 48 hours, I was held

captive and continuously drugged and I was raped twice. To my surprise in the middle of the night, he woke me up and said that he was going to release me. Relief and joy after Denise Huskins arrived home in Southern California. I get my life back only to have it all completely blown apart by the false accusations of law enforcement. Vallejo police believe Denise Huskins and her boyfriend staged assault sending their department on a wild and expensive goose chase. Things like this

never happened. So therefore we can't believe you. This was a massive story. For months, the world

β€œbelieves that this was the hoax and then suddenly there's another attack and that's what finally”

leads to an arrest. He was a marine, then a Harvard law student, then a practicing attorney. Now Matthew Mueller is accused of being a monster. Our hope was now that one person's caught, they would continue to investigate. There was still so many questions that were left unanswered. Was anyone else involved? And what other victims are still out there? My name is Nick Borgis. I did not investigate this case, but I wanted to give Denise and her

answers. I told them. I've always believed you guys and words are not enough. I'm an action guy.

So I started writing letters to Matthew Mueller. Dear Mr. Mueller, I have followed and come to learn quite a bit about the Vallejo case involving Ms Huskins and Mr. Quinn. He ended up responding. This is incredible. I did not expect him to start confessing. Tracy Smith reports Denise and her inquiry get the last word. In the pre-dawn hours of March 23, 2015, Erin Quinn and his girlfriend Denise Huskins were asleep in his Vallejo California home. On a where they were being watched.

Around 3am, we were awoken to a strange man saying, "This is a robbery. We are not here to hurt you,

stay calm." They never saw his face, but he was oddly wearing a wet suit. He said he was

part of a group of people there to rob them, but he did all the talking. In recalling what happened to them, Denise and Erin called him the voice. And I saw flashing white light on the walls and red laser dots, scanning the walls. The voice instructed me to tie Erin up with zip ties, left him on the edge of the bed. I'm tied up and he makes the knee hop to my closet. I can hear people downstairs, go on through the kitchen cabinet, I can hear a drill running. Denise was

ordered to go into the same closet. There, the voice also tied her up and made them drink a sedative. Blacked out swim goggles or placed over her eyes. And eventually I was told that I was

Going to be taken for 48 hours.

for my release. Those tasks included going to a bank for ransom money. The voice took Erin downstairs

to the living room, where a security camera had been mounted to monitor him. The voice tells me that if I try to go to police, they'll kill Denise. So I can hear him, put Denise in a trunk of my car. I'll just hear Denise say, okay, and I'm just hoping that's not going to be the last thing I hear from her. Erin says he soon passed out from the sedative. He woke in a stupor later that morning. The voice had taken Erin's laptop, but it left his cell phone saying they would contact him.

Erin says he wiggled his hands free from the zip ties, but then struggled with whether he should call for help. What was that like weighing that decision? My thought was, if I call it police,

β€œI know I'm going to be safe. But then my fear is am I actually killing Denise? Emergency?”

My girlfriend doesn't know last night. Erin took the chance and called 911. The Vallejo police department responded. As Erin told them what happened, he says investigators began to question his story. I don't blame him for being a little skeptical, but I gave him permission to search everything, and I agreed to go down to the station to provide statement. My whole goal, which I thought everyone's goal was to find Denise. Erin gave the police his cell phone in his clothes to test for evidence.

He was given prison clothing to change into, and then the lead detective Matthew Mustard began to

question him. And it's about 40 minutes until our interview he basically leads back and says,

"Well, I'm tired of him as far fetch, and he doesn't believe me." I don't think she was kidnapped from your home.

β€œI think something bad happened in your house. Not only did he appear not to believe Erin,”

he seemed to be accusing Erin of killing Denise. Denise is going to be found. And when I said she's found, she's dead. They did not come in your house and kidnapped her and take her for granted. That did not happen. He did it. No, I did not. I had nothing to admit to. And then do anything. Meanwhile, Word got out to the media that Denise was missing. Officers converged on the home where Denise was reportedly kidnapped. Julie Watts is an investigative correspondent for CBS News,

California. I think immediately people were captivated. Search teams have been checking

area fields, cadaver dogs are among the searchers. Folks assumed from the beginning that she was dead. And immediately her boyfriend Erin Quinn was the suspect. To Erin, investigators were so focused on him. He wondered if anyone was looking for the people who had actually taken Denise. After being placed in the trunk of Erin's car, she was driven for a bit, transferred to the trunk of another car and driven for hours. He think of all the possible things that are going to

β€œhave. Where am I going to be taken? Am I going to be tortured? Am I going to have to have to withstand?”

God knows what? The voice took Denise to a secluded home where she was kept blindfolded and sedated. He told her he would keep her there until his group received the ransom money. She was in and out of consciousness, but remembered him telling her they'd done this before. Even raped her. The next morning, Denise says she heard someone come to the house. Then I heard what sounded like a truck pull-up to the house, doors open, closed, people entered,

there was whispering and then they got in the car and laughed. The assailant then raped her again. I told myself no matter what, I'm not going to beg, power, or scream. Because you thought that would keep you alive. Right. I hoped that that would keep me alive. Hours passed, but then even without the ransom, the voice stuck with the plan to release her, just not in the Lejo. He asked Denise where her family lived, blindfolded her and sedated her again,

and drove our south. He then released her near where she grew up in Huntington Beach, a nearby security camera caught these images of her. I heard his car drive off and started walking down this alley in turn and I see the street that I grew up on. A neighbor called the Huntington Beach Police and the news of Denise's reappearance spread. A Bay Area woman reportedly kidnapped for ransom is safe tonight. What exactly happened to her? That's still very much a mystery.

Although Denise and Aaron hadn't communicated since the attack, Denise told the Huntington Beach officers the same story Aaron had, but she too began to sense she wasn't being believed. It was okay, yeah, yeah, but we, you know, we need to figure out what's going on with Lejo.

So it just felt like something wasn't right.

Worried Denise hired an attorney. That night as she was making her way back to the Lejo, the Lejo Police Department gave a press conference, saying they could not substantiate anything Aaron had told them, and that Denise would not talk to them. Mr. Quinn and Miss Huskins has plundered valuable resources away from our community. They essentially called the case

β€œa hoax. The media came up with another label. Is she a real-life gone girl?”

In the first few days, after the Kidnepper released her, all of the headlines had the word

gone girl in it. Relating it to the Blockbuster movie that had just come out, I think the year before, where a beautiful blonde fakes her own Kidnepping, and it stuck. That same night, Denise says her attorney told the Vallejo Police Denise had been raped, and asked to set up a sexual assault exam, hoping DNA evidence could help identify her attacker. But Denise says Vallejo Police refused to order an exam, until she talked to them.

I could hear whoever was on the phone say, "Well, how do we know she was raped?"

She won't even talk to us, you know? Just tell her not to shower, keep her clothes on, don't

wash her hands, brush her teeth. Denise says Vallejo Police made her wait until the next morning to come in. We're not here to judge, um, and we are just looking to figure out the truth. They interviewed Denise for six hours before she went to a hospital for the exam. So in a way, it's like, yeah, they had to prove to them that it was worthy enough to have the exam. The initial testing led nowhere. After cooperating with the investigators,

Denise and Erin feared they might be charged with lying to police. All the while knowing the people who attacked them were still out there. Now as I think the most terrifying thing,

β€œknowing they will do this again, we know that the only way that will be vindicated in the truth”

will come out is if they attack another family. In June 2015, nearly three months after Denise Huskins and Erin Quinn were attacked, a home invasion was reported in Dublin, California, about an hour south of Vallejo. An intruder came in. The wife called 911 while the husband fought back. The intruder escaped, but in the chaos, he left his cell phone behind. Detectives

traced it to this house in South Lake Tahoe. So they get their investigators together and they show up at Tahoe Cabin. Inside was 38-year-old Matthew Muller. He was arrested on the spot for the Dublin attack. He is a harbor-educated lawyer. He is formerly a marine. He is not the type of person that you would expect. And when they searched the house, they found some interesting evidence. They found Erin's laptop at Muller's cabin. Authorities also searched a stolen car parked nearby. Investigators looked at the car GPS,

and they saw that it had the GPS point where the kidnapper had dropped off. Denise Huskins. And in the back of the car, they found goggles, blacked out swim goggles, with a single strand of blonde hair. The hair was later confirmed to be Denise's. The goggles, the GPS address, and the laptop, all of it was strong evidence supporting the bizarre story Denise and Erin had been

β€œtelling all along. The only way they were vindicated was not by police work. It was by”

other people, being harmed. The voice finally had a name. Matthew Muller would be charged with

Denise Huskins kidnapping and rape. Did Muller's arrest make you feel safe? A little safer? The rest may as feel a little safer, but we so believe there's other people out there. But no one else was charged. Denise and Erin steeled themselves to face Muller in court. So you're preparing for him to go to trial? What happened? Well, you end up taking a plea deal. Muller ultimately received a sentence of 40 years total for the Dublin attack and their attack.

Denise and Erin had hoped for a life sentence.

to do something like this again. I don't think that's true. Around this time, Denise and Erin

β€œfiled a civil lawsuit against the city of Vallejo claiming defamation and emotional distress.”

They eventually settled for $2.5 million.

Did the Vallejo police ever vindicate you? No. No. It was always this case was too strange to believe.

The Vallejo police department did not respond to our request for a comment, but they did issue a statement after the settlement, saying the Huskins Quinn case was not publicly handled with the type of sensitivity a case of this nature should have been handled with. Although their case seemed to be over, Denise and Erin hoped authorities would continue to investigate Muller for other crimes and possible accomplices.

And there was still so many questions that were left unanswered. A big piece of that was what

else was he involved in. We just knew that our case wasn't the only one. You knew, but did you

feel like anyone was listening to you? Well, no, that's the problem. Denise and Erin spent years trying to move forward. They got married and started a family and eventually decided it was time to tell their story in their own words. We can take back control of our trauma and maybe use it for good. They wrote a book and participated in the Netflix series American Nightmare, which was watched by millions of people in 2024. I was hooked as soon as it started.

One of those people was Nick Borges, the police chief in seaside, California. I'm watching this just thinking, I want to reach out to these, I want to hug her, I want to hug him and just like, oh my god, I'm so sorry. Though he wasn't involved in their case, Chief Borges reached out to Denise on Instagram to apologize on behalf of all law enforcement. When you read that message,

β€œwhat did you think? I think I got really emotional. Because it's not, we're not asking for a whole lot,”

you know, like just to be respected and listened to and treated like we have value, and meant the world to feel like we had an ally. Chief Borges invited Denise and Aaron to seaside to speak about their experiences with law enforcement. I give Maxis everything and wasn't enough because they had already decided I killed her. Chief Borges wanted to do more to help Denise and Aaron get answers. I don't have a problem shaking the tree a little bit and flipping rocks.

He decided to write Mueller in prison. I was very honest with him. I want to know if you

acted alone or not. Within weeks, Mueller wrote back. Essentially in his first letter back to me,

he said he acted alone. So you start this kind of writing relationship with Mueller. Yeah, he sent me back a second letter and this one was thick. In the letter, Mueller confessed to two crimes in Santa Clara County in 2009, six years before Denise and Aaron's attack. One was in Palo Alto, one was in Mountain View. He broke in sort of disguised and attempted sexual assault. Back then, Palo Alto police had identified Mueller as a suspect because he'd been

caught prowling in the area, but they didn't have enough to charge him. Now he was coming clean. They were full-blown confessions with specific details that only the suspect would know. Mueller also indicated there were even more crimes, but only tease the details in his letters. We know that Mueller did some really awful things. Vern Pearson is the district attorney of El Dorado County where Denise Huskins was held captive.

Although he was not involved with the original investigation in 2024, Pearson also offered to help

β€œand wanted to speak with Mueller directly. Pearson thought the best way to get him to open up”

more was to use a strategy called science-based interviewing. One of the hallmarks of science-based interviewing is speaking to somebody without revealing any judgment you might have about either what they're saying or what you think about them as a person. It just strikes me how different what you're talking about is from the way that the Vallejo PD handled Aaron and Denise's case. Yeah, they passed judgment. That did not happen. And they just sought to confirm, confirmed,

Confirm.

change his subject, go back to the theory that they had. Pearson was determined to do things differently.

β€œHe brought in a highly trained FBI interviewer who specializes in this technique, and their strategy”

would pay off. In November 2024, DA Vern Pearson and the FBI interviewer flew to Arizona to speak with Matthew Mueller at the prison where he was serving his 40-year sentence to see what else he might confess to and figure out his motivations. He's extraordinarily manipulative and if he's telling you anything, there is a reason why he's telling you what he's telling you. With an audio recorder running, Mueller claimed he now wanted to be up front about his past because he'd undergone a religious

transformation in prison. He shared that in the past he'd struggled with insomnia, which led to taking long walks at night. They started looking in windows and they started general curiosity, then went kind of sexual. Mueller described a long history of voyeurism, admitting that while at Harvard Law School in the early 2000s, he set up a video camera in an office bathroom. This evidence video shows him doing the same thing years later while on vacation in

Hawaii. He installed a video camera in a public restroom so he could look at it. The more space they gave Mueller to talk, the more depravity he revealed. After several hours, he began talking about yet another home invasion on the border of Contra Costa County, just two weeks after he attacked Denise and Aaron. Mueller described using a ladder to climb into a family's house and waking up a mother, father, and their teenage son.

He instructed the mother to go to a bank to withdraw ransom. After she returned with $30,000, Mueller threatened that if they ever told the police, he would come back and harm them.

β€œThe family never reported it. So there was no crime that matched this reported back then at that time?”

No, there was nothing. That wasn't the only crime Mueller said he'd gotten away with.

He recalled another attack, which he said was his first. Back when he was a teenager in the

suburbs of Sacramento. Mueller said one day he'd walked by some campsites at a state park in nearby Folsom and fixated on a young couple. He returned that night with a stolen gun. Mueller said he tied up the couple and carried the woman away and down a bike trail. Then he says he saw a light nearby. He sexually assaulted her, then fled. Leaving that interview, Pearson set out to prove Mueller committed these crimes.

Starting with the un-reported home invasion. The interviewer had him described the location and then we had him draw a diagram that kind of roughly showed that. We looked on Google maps and we eventually came up with a community that very closely matched the diagram that he had drawn to us. Pearson wondered if the latter Mueller mentioned using might still be there nine years later. It was a long shot, but his team asked contra-cost investigators to search the ravine behind that house.

You can imagine. It's like, hey, this was never reported to you. You guys know anything about it.

β€œBut we think there might be this latter. Would you go look for it?”

And a couple hours later, I get a text message that they found the latter. But how remarkable is that? Pretty remarkable. The family who still lived there confirmed everything. Next, Pearson set out to find the campsite victims. His team scoured Folsom and Sacramento County Records until finally one of his staffers found a four-page State Park's report of an incident

from August 7, 1993. At the time, Mueller was just 16. We look at it and it's very close to what he described. I mean, virtually identical. Victim accident, the tent, the two sleeping bags and

Pillows, and as told by subject to lay face down in the camp, this had to be it.

notified the Sacramento County District Attorney's Office and criminal investigators Kevin

β€œPapino and Michelle Hendrix took over the investigation. Back in the day, in the 1990s,”

did it look pretty much like this? Essentially up here, it did. The campsites are no longer there and original investigators have died. So Papino and Hendrix started by retracing Mueller's steps that night. So he brings her up here and again, she has no idea what's going. What's going on? She doesn't know where she's going. And at night, this place is pitch black. It must be terrifying. Absolutely terrifying. From the report, they knew the victim's boyfriend

had found her on this footbridge along the bike trail, untied her and they had called for help. Parker Andrew showed up, a full-son PD officer showed up and they took a statement from them and then they left. The officer's left. Papino and Hendrix also found photos, officers took that night, which showed a gun they believed Mueller dropped when he fled, with no other leads to follow. They reached out to the victims. And how old were you in 1993?

I was 19. In the middle of the night, we were awake into someone hitting the back of our tent. We spoke to the female victim in 2025. She's asked us not to show her face,

and to call her Lynn. This is the first time she's speaking publicly about what happened to her.

β€œThe only thing I can really remember is just praying. praying for this to stop, praying for him to get away.”

praying that he doesn't tell me. Lynn says after she and her boyfriend called for help that night, it didn't feel like the officers were taking her assault seriously. It very much felt like they maybe didn't believe me or believe my boyfriend. Just by their line of questioning. Like what? Like with my boyfriend, they asked him, "You mean you didn't see the gun? What do you mean you didn't see the gun?"

Instead of just listening to us and believing what we were telling them. She says she called the park's department for months asking for updates, but nothing ever came of it. In fact, I even stopped telling people about it as time went on. Lynn and her boyfriend eventually married and drew strength from each other, but Lynn says it was difficult to ever feel truly safe.

Is there a way to describe the weight that you carry? It's kind of hard to describe because it's just kind of part of who you are now. For many years, I didn't go by myself that night.

β€œEven during the daytime, I'd make sure I would keep an eye over my shoulder of who's around and be aware of my surroundings at all times.”

I didn't feel comfortable wearing shoes that I felt like I couldn't run in. So, like flip-flops or sandals, just in case I need to run.

But that began to change when she first spoke with investigators' papino and Hendrix.

I felt this sense of relief. I knew that I was being believed. I knew that something was getting done about this finally. And Lynn felt more relief when she learned her attacker was now behind bars, but she wanted him to be held accountable for what he'd done to her. No, you didn't get away with this.

You didn't just move on with your life and forgot that it happened. You don't get to do that. What do you want to do? You don't want to do it. The master-by-tark lab-tabΓΌcher soft-handed internet. It's a master-sister.

I'm saying, you can't say that. You're a master-er, right? But you don't understand. Exactly. The master-bark is a failure. It's a matter of how much you do.

And if you do it, you'll get caught. That's right. Save. How much do you do? I'll give you a chance. Now, you're going to be a master-er.

Last season, the podcast campus files brought you stories of fraternity drug rings, stolen body parts, campus cults, and more. And now, campus files is back for another season. There's a guy screaming into his phone.

He's like, "Just try the cork you assassinated right in front of me." Every week is a new episode and a new story. It's okay, I like. It's almost a university on a siege. Listen to and follow campus files.

Available now wherever you get your podcasts. [ Music ]

To learn that he was 16 years old, the first time he attacked a couple.

[ Music ] It made a lot of sense, but it's also just incredibly disturbing. Denise Huskins and Aaron Quinn had long suspected

Matthew Mueller had attacked before, but to learn the details

and have the crimes confirmed by investigators was still devastating. A lot of people have suffered from this man. Someone break down the middle night, tying you up. These are things that are nightmares.

The voyeurism, the stocking. [ Music ]

β€œI think it's a way of invading people's lives to terrorize.”

In late 2024, Matthew Mueller was charged with the attempted rapes in Santa Clara County.

The first attacks he'd confessed to in the letters.

He was flown back to California to face those charges. There, he was also charged with attacking the family in Contra Costa. While sitting in the Santa Clara County jail, Mueller wrote another letter. [ Music ] He sent a letter to Nick Borges, essentially indicating and had additional information

that he wanted to provide to Denise and Aaron. He's trying to lure Denise and Aaron into public property. I read that letter exactly that way. D.A. Vern Pearson thinks meeting with Denise, in particular, may have been Mueller's objective for confessing all along.

D.A. Pearson was like, he's confessing to certain things for a reason. They're all in California.

β€œI think he wants to get back to California and hopes that he can meet with you.”

[ Music ] Even though they were fully aware, Mueller may have ulterior motives. Denise and Aaron did still want to talk with him. Mueller had confirmed and given details about other crimes he had committed, but still maintained he acted alone in theirs.

Denise and Aaron are adamant they heard other people during their attack. [ Music ] I felt like maybe of all people he would be more honest with us, but having already spent many hours interviewing Mueller, Pearson did not want them in a room together. I didn't think that was a good idea.

They came up with a compromise on February 13, 2025. Mueller and his attorney met with Pearson, the FBI interviewer, and Chief Borges at the Santa Clara County jail. Denise and Aaron were there too, watching from another room. [ Music ]

They let him know early on in the interview. They're observing, they're not coming in. I think that irritated him. The FBI interviewer had said that conversation was very different. When asked why he wanted this meeting, Mueller claimed he was there to help Denise and

Aaron, mostly. We were around the time obligation to make it possible for them to visit with maybe the closure of this in a way that I need to closure as well. But when the FBI agent pushed for the answer to Denise and Aaron's question, they are continuing to suffer in the sense that they continue to believe that the

other people at first Mueller didn't directly respond and talked in circles.

The only other information I could provide in it goes to the head into the religious matter. So, you know, if you are having events that seem to be described by the Bible or the court or anything else. And he's just an incredibly frustrating human. Eventually, Mueller again denied he'd had accomplices.

And I guess that that's I can do this. They look every other thing that I've done was a load of hackers situation. And I'm just sort of a little, generally. But Mueller did go into detail about how he said he had tricked Denise and Aaron into believing he was working with a group.

He did various steps to make it look as though he was had somebody else with him. There was multiple people. He told us that he had used a device that he could make it sound as though he was talking to somebody downstairs and getting a response using a recorder.

β€œAnd I think there was like a whisper track or something who'd let that, and then I pretended”

to be whispering to someone at the same time. Do you believe what Mueller was saying about well? I was pretending that there were other people in the room. I don't believe everything Mueller says. I know what we saw.

We know what we heard. Although Denise and Aaron didn't get the answers they'd hoped for, they say that confronting Mueller, even through the interviewers, was a form of reckoning. For us it was more shown out.

We're not scared of you, we see you, we see who you are. And they were determined to see Matthew Mueller face justice for all the crimes their work in persistence had uncovered. In June 2025, he was finally charged with lins attack and faced a life sentence for each of the additional crimes he was now charged with.

Denise hoped this would finally lock him away forever. I don't believe if he's ever free that he could help himself.

I feel like he'll always figure out a way to terrorize someone in some way.

By the summer of 2025, Matthew Mueller was convicted of all the charges broug...

of the new investigations spurred by Denise and Aaron. At Mueller's sentencing, Lynn read a victim impact statement, three decades in the making.

β€œI think for so many years, feeling like my voice was silenced,”

feeling like my voice could be heard finally, felt very empowering. I got the last word. Now you get to be silenced. Mueller was sentenced to four life terms. How does that feel that he's now serving four life sentences for four crimes

that he might have never confessed to had you not written that letter?

Goosebumps, I have them right now. Lynn says she felt relief knowing Mueller would stay locked up while she walked free. Finally, able to live without fear and enjoy old past times and new ones. How are you with going outdoors and camping now?

It's it's easier now. And one of the ways that we were able to do that was through plain disc golf. But gave me something to focus on outdoors that felt safe again. She is also connected with Denise. She actually reached out to me on Instagram.

When I saw, you know, I'm Matthew Mueller's first victim, like I, I was like, why? I wanted to say thank you.

I'm just let her know that 32 years of waiting was finally over

because of her continuing to seek answers. While Lynn finally has answers, Denise and Erin still question whether Mueller acted alone. DA Vern Pearson hoped forensics could prove if there was another assailant. Pearson learned Vallejo police had only done preliminary testing on Denise's rape kit, so his office had it fully tested in 2025.

Well, the results are essentially inconclusive. Pearson says the test showed a mixture of DNA, including Mueller's, so they can't rule out the possibility that Denise could also have been assaulted by someone else. But Pearson doesn't think so. Based on everything I know, I don't believe that there was an accomplice.

β€œI think that was a ruse that he created and perpetuated very successfully.”

Chief Borges isn't so sure.

Do you think Mueller had accomplices? I think it's very possible. I certainly think it's very possible. But Borges and Pearson both believe Mueller committed additional crimes. Everywhere that man traveled, he was a threat. And Chief Borges says it's possible Mueller went even further.

One of the times I interviewed him, I asked him if he ever killed anybody. It just seemed like an appropriate question. He kind of told me that he didn't have the heart to do that. Do you believe him? Not fully. I don't fully believe him.

I mean, at what point do you actually stop? Chief Borges says he hasn't stopped investigating, looking for other crimes and accomplices. If anyone else is involved, we're coming for you. Just trust me, we're going to get you if you're involved.

Today, Denise and Aaron continue to speak to law enforcement, trying to change how officers interview victims and suspects. Denise has said not being believed was more traumatic in many ways to her than the actual assaults themselves. If that doesn't open your eyes and law enforcement, something's wrong with you.

Chief Borges says that is the biggest lesson he's learned from Denise and Aaron. We have to believe victims when they come forward. We have to listen to what they say and follow the evidence. Despite all they've been through, the twins say that while their case revealed a lot of problems,

it also shows the solutions. We understand it's a really hard job. It's people make mistakes. What you're hoping is that people recognize mistakes. They learn from mistakes and it changes their actions going forward.

It's better to be able to be here and be claimless as something positive. And these unlikely advocates are determined to use their voices for good. I don't think anyone would blame you if the two of you said, "Okay, enough. We don't need to talk about this anymore. Why not just move on?"

β€œI think there's a sense of responsibility.”

The publicity was so damaging to us in the beginning.

So I feel like in a way having the strange unique position,

it almost seems irresponsible to not utilize it in a positive way that can maybe help others.

β€œKenny Park left the Vallejo police department in 2020.”

Matthew Mustard retired in 2024.

48 hours was unable to reach them for a comment. (dramatic music)

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