Dr. Insanity - Father Realizes His Son Was Actually The Killer

Episode Date: May 30, 2025

This is Richard Williams, the father of Brent Williams, and he's just recently learned Brent's wife, Erin Mulcahy, was found dead inside their home. At first it looked like a terrible accident, but as the investigation delved deeper, the cops realized their sleepy village of Waynesfield, Ohio, was about to experience its first homicide in almost 60 years…. This video was made for educational purposes only. The video is presented to provide genuine footage of police incidents to promote transparency in government while providing educational, informative and newsworthy content allowing viewers to examine and assess public safety material. This is a fact-checked documentary using authoritative sources. Learn more about your ad choices. Visit megaphone.fm/adchoices

There is the cold habitual And it is the cold of the cold at his summit. Cozlight,

in view a fruade, celebrate in a fashion responsible, you have have the age legal

for consuming the alcohol. Let's just start with when's the last time that you actually talked to Aaron? Why does that matter?

When's the last time you talked to her? What does that matter? No, I'm asking why does that matter? This is Brent Williams and his wife, Aaron Mokahi,

to say their marriage his on the rocks would be something of an understatement. I didn't want to be with Brett because he was turning to hit me in. I don't want to be hit anymore. When did he hit you last? I'm afraid to tell you. Only months after this encounter with law enforcement, the marriage of Brent Williams and Aaron Mokahi would come to a tragic end.

Aaron had been found dead. At first, it looked like a terrible accident, but as the investigation delved deeper, the cops realized their sleepy village of Wainsville, Ohio, was about to experience its first homicide in almost 60 years. The investigation began on July 7th with a horrifying discovery. What's going on? I'm not sure she's been in there for two days, probably.

Okay, in this apartment here, Aaron and Peggy. Yeah, Brent, and his dad was here the other day. Okay, but they have me. And she was in the shower then. Okay, yeah. I heard the water running, and I looked down here. The floor of water was running out. Running out?

And so she's in here? Yes. Okay. Oh, yeah. Okay, yeah, definitely. Rigamortis and sorry, sit in. Okay, I'll have you guys step out here, because I'm going to have to get some pictures and things like that.

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Last time anybody saw her was a few days ago. Still getting some additional information on all that. Brent was here, her ex-boyfriend or whatever was here a couple days ago. And, uh, um, that might be one of the guys coming from one of the landlords. They were coming in and redoing the apartment next door. They heard water running. And when Brent was here, supposedly the other day, he said that he heard water running.

but they said there was water all the way. It was flooded all the way out here. We're not even going to perch because... Right, right, exactly. We'll preserve the scene for you. Okay, all right. I appreciate that. My footprints right.

Yeah, your footprints right here. I'm going to talk these guys and make sure they came in and shut the water off. But they're the ones that found her, so I would presume that. Aaron's neighbors had become concerned for her welfare, as they'd heard water constantly running from inside her apartment. It could be nothing to worry about, but Aaron's neighbors decided to call her landlord to voice their concerns. Aaron's landlord called Brent to try and get permission to enter the house, but he didn't answer the phone. So her landlord called Brent's father instead, who arrived a short time later to help.

But instead of finding a problem with the plumbing, they found Aaron's body slumped in the shower, and the worst part, she'd been there for several days. it would be easy to assume Aaron was the victim of nothing more than an accident as there appeared to be no injuries, stab wounds, and no sign of a suspicious death. The officer knew Aaron had been having problems with alcohol addiction, but he also knew her marriage to Brent was not a happy one. And there could be more to this case than first appeared. Yeah, I'm not sure what it is. I've got to get...

Actually, you know what I do know what that is. Oh, okay. History of alcohol, alcoholism, and things like that. But I've got to investigate this as something beyond that because there has been domestic history and things like that. So, all right. Howdy. To try and get a better picture, the officer spoke to Brent's father,

who revealed Aaron and Brent's marriage was on the verge of breaking down completely. Let's just start, I guess, from the beginning. beginning. When was the last, prior to today, when was the last time you were actually in this apartment? Thursday. Thursday? And was anyone with you when you went in? Brent and I went in. Okay. And what happened on Thursday? Brent needed to get his checks, extra checks out of there because he didn't know what error was going to do. Okay. And he wanted me to come along because we're a witness. Sure. Makes sense. Go in? Yeah.

We hear the shower running. We think she's in the show. He gets his checks. We come out here. We run into gym, standing right out here. And we said, we told him exactly what we done. We went in to get them checks and stuff. And he said, oh, he said, I talked to Aaron the other day.

Who was this that you were talking to? The guidance. Oh, yeah, okay. I got you. He said Thursday, late afternoon, early evening. He said, I had talked to her yesterday, told her to get out. And that's about all that was said. Okay.

He went his way. We did too. Earlier today, Brink went up and got some mail, and he said it had Aaron's name room. And he didn't want to bring it out here because he was afraid of trouble. Sure. Arguements. Sure. Yeah.

So I said, well, just leave it there. I'll take it out. We're on our way up here. Sure. And he calls me. Okay. And he said that he had to get in there. Okay.

He told me about the water running. He shut it on. Okay. Before you guys made entry, he shut the water off. Okay. So when I go in there, the door and the bathroom doors closed, I beat on. I opened it up, and I thought I'd seen her land on the floor there through the glass door. Okay.

And then Jim called you got this. Did you actually walk into the, into the bathroom? I did. Okay. Okay. How long had they been split up, do you know, roughly? What is today's Saturday? Today's Saturday, yeah.

Monday of last week I don't know for you Okay, so it's just been recent Very, very recent, okay Brent's father also revealed He and Brent visited the house two days earlier And even though they heard the shower running They didn't physically see Aaron

So they couldn't confirm if she was alive at the time Aaron's father had his own theories about what had happened As he'd been dealing with her alcohol addiction And mental health problems for years In fact, it came almost as no surprise that she had passed away at an early age. If I'm a father.

Okay, okay. Nice to meet you. They've known him for years from church, stuff like that. Okay. He was telling me that Aaron has had kind of struggle with alcohol. Yes, some seizures,

stuff like that. She was bipolar too. Bipolar. Schizophrenic. I remember her telling me that. As, you know, I've been here many times. Sure, it's been back and forth. Yeah.

that's why I haven't been here. I told them, wait, when you guys get your act together, then we'll start acting like a regular family. Sure. Busting a fight and I'm not getting involved. Right. Because there was one to get me in the middle of it. Sure.

Yeah, sure. Absolutely. But Aaron's father also had a crucial piece of information that would help the cops trace Aaron's last movements and try and solve the mystery of her death. You know, and I know she'd had seizures on and off, but I didn't know that they were, how bad they were late. I mean, sure. She'd been having something lately.

I just talked to her two days ago. You did? Yeah. On the phone? Okay. Do you have date and time? I could look at my phone. Okay.

Okay. If we could get that, that'd be great. Okay. We're just trying to paint a picture as to how we got to where we're at right now. Right. I understand. It's entirely possible that Aaron hadn't been taking her medication and had suffered a seizure while taking a shower, resulting in her untimely death.

If Aaron's father had spoken to her on the phone in the last couple of days, then finding out what time he made that call could help piece together this puzzle and determine a time of death. Hey, Brent. Can we talk to you for a few minutes? Yes, sir. All right.

But luckily, Brent arrived on the scene and was more than happy to help the cops with their inquiries. At this point in time, everything's fine and we're just here to talk and try to get this figured out, okay? Yes, so that's why we're here. Let's just start with.

When's the last time that you actually talk to Aaron? Sunday? Sunday? I moved out Sunday. You moved out on Sunday. Okay. Was it kind of a heated argument or just she just said get your stuff and go? I did. I did. My dad came with me. Okay. Got my clothes. Pulled out. Okay. Okay. Okay. All right. And did she say anything to you when you left or nothing at all? No. I just said I was very quiet about it. My dad was with me. It was vouched. Did I get my clothes? Didn't say a word to her. Sure. and got out. Okay.

There's nothing to suggest either Brent or his father are hiding anything or withholding information. Brent seemed adamant that he entered and left the house as quickly as he could and didn't interact with Aaron, other than by text message. But out of nowhere, Brent's father throws up a major red flag that's impossible to miss. Did you guys have any conversation after that? You hadn't talked to her at all since Sunday. Text her. Text her. You can only read the text.

You're more than welcome. can, yeah. That's why. I really don't, but don't bother me. Okay. Remember, Brent, I said, don't volunteer, answer questions, okay? Okay. Okay. Okay. This could just be a case of an overly cautious parent, as Brent himself seemed to have no problem cooperating with the cops, agreeing to pretty much anything the officer asked of him. One other thing that I would like to do, and here again, this is just to eliminate

you from any wrongdoing is I was wondering if you would be willing to give a voluntary DNA sample like swathe I'm willing to do that yeah okay all right perfectly that's absolutely perfect so I got a consent form

here I'll fill that out and then I'll have you sign it and then we'll just get a swab from your cheeks and it's pretty simple if that's okay with you sounds like a plan when it came to giving up his cell phone Brent suddenly seemed reluctant to cooperate.

So are you saying that you really don't want to give up your phone at this time then? Well, I don't want to give my phone. I don't really give up my phone. You're seeing the information I get on my phone. Okay. I don't, I guess calls. I might need calls to my parents. No, I understand that.

You're cool. He's okay with that. Yeah, I mean, that's why we ask. I mean, I'm not trying to hide anything. I just don't want to give it up. Do you mind if I get pictures of those text messages? Brent's behavior aroused suspicion with the cops. It could be possible that there's something on the phone he didn't want the cops to see.

But if there was, they'd have to wait to find it. So to try and understand Aaron and Brent's relationship more, Wayn's town police reviewed body cam footage of one of the many times they'd been called to the residence. And just like this example from months earlier, the arguments usually started because of Aaron's drinking. All right Now hi How are you

What's going on She left Um She left I didn't know what situation When she came back I don't want to go jail She went to jail

Once And then she is intoxicated Okay You think you're drunk I have drunk Okay how Yeah I can tell When did you start today

Earlier today I don't know exactly You want any probation Right now? No. Are you on any medication? I take tarotidone for sleep. Okay.

Have you taken it today? No. I'll tell you, I'm going to fix this issue. I'm only to my mom's life. Okay. I'm gonna get out of it. That's why I call. No, yeah, and that's the right thing to do.

You live here, right? We both do. We're married, so I'm allowed to live here and his, I would imagine. Mm-hmm. Yeah. Especially if my dad pays him. debt pays my rent yeah there hasn't been any any other than verbal argument that's all it's an argument no i haven't even been an argument okay that's why you're here that's what you're here

before something else okay well i can't i can't stay here all night and wait until so what's what's the plan then what's get my stuff and i'm going out okay are you doing that now or okay okay all right well i can stand by while you do that what's it i know you're the i know you're a busy guy and everything But can you drive by here and lose one? Because last time I was up there was a guy here. Okay. And I worry about this stuff. And I worry about this stuff.

Okay. If you and I are not being together ever again, leave me the hell alone. Have you filed for a divorce yet? Um. Yeah. I got, I went to that. I don't know. Despite Aaron's threats, the couple were indeed together and separated again several times over the next few months.

With nothing to go off, no forensics, and no solid lead in the case, the cops had no choice but to try and convince Brent to give up his phone in the hope that it cleared him of any wrongdoing or gave them anything to go off. This encounter did not go as smoothly as planned. I'm Dan. How are you doing? I spend more, I'm going to get her way over one. I got my everything.

Hello. Hi. How are you? Just in a bird. Are you looking for Brent? Living the dream, we are. Is he here? No, he's in line.

Okay. Is he? Okay. Okay. Is there any way you could get a hold of him or have him come back down here? Because I'd like to talk to him again if that's okay. Real quick. Well, yeah, but it's not going to be real quick.

He's a line. No, I understand that. Why are you going to talk to him again? There's just a few more things that I'd like to, we'd like to talk to him about from, you know, Saturday night when we talk and whatnot. Okay, you've got me on my head. You got his mother on his. Okay.

You better come across for something, buddy. Because I'm thinking my son's going to jail, and you let her straight out on this one. And I'm damn serious. Okay. He's not going to jail. Okay. You're sure of that?

No, he's not going to jail. Then I'm going to call him. Yeah, no. Is he going to be charged with something? No. Is he going to be charged with something? No, we're still trying. trying to figure out exactly what's going on.

Get this figured out, okay? With no sign of Brent, the officers were left to deal with his increasingly hostile parents who were intent on questioning every step of the investigation. Because there are some loopholes that we're trying to get those loopholes filled up. That's what we're trying to do. I'm not ready to pass out, okay? I am too. You're working me up.

And I know you're not doing this and all this. How am I working you up, sir? Because my son is in on this, and you're asking more questions about him. And she's done. Wouldn't you be concerned about him? Right. You wouldn't be concerned about your son? Wouldn't you?

We've been a mess. I understand that. And that's why we're trying to get... Come and sit down. That's why we're trying to get everything. When we can sit down here. When I left down there the other day talking to you, I felt pretty good. Right?

And then you come back and lay this on me. Oh. And that fella right there. Told me the same, getting in the same field. Right. Well, and what I tried to explain is all we're trying to do now is, you know, whenever you have a conversation with somebody, you go back and you think, oh, gosh, I wish I would ask this question. I would say that when you come in.

Well, you were freaking, you were secretive, like, I could talk to him, and I understand that you've got to talk to him. But you've got to understand we're living through this. Sure, absolutely. Well, I understand. You got children? No, I did not. But you're lucky. The situation wasn't improving, and the cop's very presence seemed to be making things

worse with Brent's father on the verge of losing control. Really, all we're trying to do is fill in some gaps. You know, we had some question. You get pissed on me off. I don't understand why you're upset. Well, I do. You're acting like you're going to try and put my son in jail. That's what I'm thinking.

Tell me if I'm wrong. You're not. You're wrong. I have no intention on putting your son in jail, But we have an obligation to figure out what took place as well. And there's a couple more questions that we have for him. And the reason we came here is because this is where he is living. If he wasn't living here, we would go to where he lives.

With the officers making no progress, they decided it was in everyone's best interests to back off and turn their attention elsewhere to search for the answers. The cops would get some of the answers they needed when the autopsy report came back and the results were much worse than anyone could have expected. Aaron had been strangled and had traces of blood in her mouth, suggesting she'd also been punched or struck with an object. So for the first time since 1959, Wainsville Police opened a homicide investigation. Armed with this new information and a warrant for Brent's cell phone, the cops once again called on the Williams' residence. And although Brent was home this time around, the welcome wasn't any warmer than their previous visits.

Morning, how you doing? Okay, that's wonderful. Wonderful. So how are you doing this morning? Great, great, wonderful, wonderful. Is this being recorded? All conversations I have are recorded. So, okay.

Why weren't we told that? Because it's not an obligation to. No, we're not keeping anything from you guys. Okay. We're getting legal counsel. There is one clue. Okay. I'm calling him today.

Okay. We've got his number. We don't need his number. You didn't tell us this is it. I'm done. You're scary. Yeah, you're scariness. When I saw his phone, I knew.

Actually, I was checking the time. I was actually checking the time. I mean, no, that's fine. You know, this is how we do everything. You should have told us. Okay. We're not obligated. to let you know, I mean, it's been nice if you would have said that to.

Just like if you get pulled over on the side of the road, you're being recorded always, the cruiser cam and everything else. We're getting people counsel. That's actually not a problem. Today. No problem. That's not a problem. You should have let us know that.

No, you're not being fair. Okay. Well, that's fine. You want to stay? I'm going to call Pete real quick. Yeah, that's fine. Okay. Why are you calling Pete?

Hey, hey, sir. Yes, sir. Why are you calling Pete? Call him. Who you? I'm calling him. other detective. He's got some paperwork to give to Brent real quick, okay? You're not going to fill it out and look that legal. No, no, no, no.

It's not about filling it out. No problem. I'll be right back. You guys are not doing this car. You're not treating this fair, but. I can't apologize for coming here at night at night. He said that this was not. He's not going to arrest my son. We are not. I could wait until today. We are not arresting him. Did you have anything else?

One thing to sure, all four of you got me scared. All for it. I'm scared. Like I said, the only thing we're trying to do is trying to figure out and run every answer, question, anything down that we can to figure out what, because it's not right. My son's going through his life funeral, you guys are putting my, you know, taking his phone. What him, of all people, at some point, would say, you guys did everything you could. I know it doesn't seem that way now. The way, the thing is, we all know.

In our hearts, why that lady died? Why did she die? Because she did. Despite the monumental effort to obtain Brent's cell phone, the search came up with nothing incriminating, or any suggestion he was going to kill or even harm Aaron. So the cops focused their attention on Aaron's phone, and the last time it was active.

Turns out, Aaron made a phone call on July 5th, and then went quiet. Brent had also told police he had sent Aaron a text message the very same night, but she never replied, and it started to look like that was the night she was killed. But it was when the cops spoke to one of Aaron's friends that they realized they might have found a new suspect, a man named Jimmy. Aaron had met Jimmy for an illicit encounter after she joined an online dating app behind her husband's back. I was wondering if you could help me out. I actually am coming to you,

some help if you don't mind. Depends. Okay. Well, I'm going to give you a name. And you're probably going to think I'm here for another reason, but I'm not here for that reason, okay? So can I give you that name? Aaron McCauley. There's a very good reason the cops are being very gentle with their suspect.

And that's because, after he and Aaron slept together, she accused him of assaulting her in an investigation that was still ongoing at the time. The cops could be forgiven for thinking Jimmy is involved and that he may have a motive to kill Aaron. But Jimmy is clear that he didn't assault Aaron at all and hadn't been in touch with her since. I don't know if you have heard that she had passed west. I didn't know.

I haven't spoke to her. What I would like to know is how you've met through. Online? Okay. Do you remember what dating website that was? Oh, you fish. Plenty of fish. Okay.

Jimmy had been cooperative and provided a sample of DNA, so even though he was still on the cops' radar, they were confident he wasn't involved in Aaron's murder. This left the investigation back to square one. But just when it looked like the case might stall altogether, the cops received information from someone who had become involved with Brent after Aaron's death. And what she told the cops? blew the case wide open.

This is Tiffany, and she met Brent after they started chatting on a dating website. He wanted to meet up with me last weekend, and I kept telling him how to work. Well, then he kept texting me and called me, so I finally got back to hold of him,

and then we were to text him. So we met yesterday over at Johnny Redroad, but he started talking about his wife's dying. I'm like, okay, I thought maybe happened, you know, a while ago. When the more and more talk, I still, how long did it happen? Oh, it's not been two weeks yet. By the first year actions are serious. I mean, my husband died, and I'm a widow.

I wouldn't be worried about being on these chat lines and doing this, whatever, you know. Her description of Brent's chilling attitude towards his deceased wife is a major red flag for the cops. But the worst was yet to come, as Tiffany single-handedly helped solve one of Waynesville's most brutal crimes when she revealed Brent's true motive for killing his wife. But the way he said it was weird as hell. What did he say? We were sitting there and he was talking about, you know, he's got to get this on in his life.

I said, we don't have to rush this. He even though it wasn't trying to talk to him. I said, we don't have to rush this. I said, you know, because you need to grieve for your dead wife. I said, most people are. He goes, well, I was done our aggrieved. He goes, I didn't care before she died. I've been okay with this.

He's like, I'm ready to move on. And then he's all happy about getting a check in the mill for death. The way he said it, he was like weird. He said, well, I'm waiting for a check in the mail. I said, for what? And he said, life insurance. And I said, well, he took, he's like, yeah, I took one out on her. He's like, I need she's going to die.

Did he say how much? $25,000. As if cashing in on his wife's life insurance wasn't evidence enough, Brent had taken out the policy only five weeks before Aaron's death. Just as things couldn't get any worse for Brent, the DNA evidence cleared Jimmy of any wrongdoing. And this was all the evidence that cops needed to finally make an arrest. I don't care what he's got to hear what he's got.

I don't care what he's got. You'd be a better. I'll tell you something right now, sir. All right. He did not do this. He did not. Do you. Oh, for, stop this, sir.

Come on, put me on, Aaron. First of all, you're arrested me when I didn't do nothing wrong. That's fine. Let's go. What's going to change? Brent Williams was charged with Aaron's murder, and his trial took place in the Allglaze County Common Police Court. He waived his right to a jury trial, leaving a judge to decide his fate. With the motive of a life insurance payout and DNA evidence,

Brent Williams was found guilty of murdering Aaron Mulcahy and sentenced to 15 years to life.