Uber driver claims ride-sharing app directed him to carry out shootings: Part 9

Jason Dalton claimed the Uber app "literally took over [his] mind and body" during his hours-long killing spree around Kalamazoo.
6:47 | 02/23/19

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Transcript for Uber driver claims ride-sharing app directed him to carry out shootings: Part 9
for light bladder leaks. My name is Harry Campbell and I'm the founder of "The rideshare guy." It's a blog, podcast, and YouTube channel for Uber and Lyft drivers. I've heard a lot of stories from people out on the road, but never anything as crazy as what Jason Dalton told the police. Is Uber u-b-e-r? Mm-hmm. So you just recently joined up with them? Am I okay to talk about what happened? Yeah. Obviously, the goal of these detectives is to get to motivation. What drove Jason Dalton to commit these crimes? The one thing no one in this entire country will ever forget is a killer who says he was motivated by Uber. I know you guys are going to have a hard time believing this, but it literally took over mind and body. The Uber app? Yes. It made no sense to anyone that the Uber app would take over him and force him to go on this shooting spree. This is the app as it looked in 2016 when Jason Dalton was driving for Uber. Reporter: This is the driver app, right? Yes. He remembers seeing the symbol of the eastern star, and that started this whole thing. Are you talking the eastern star like the masonic eastern star? Yes. Reporter: Jason Dalton talks about the eastern star. Could this have been the eastern star? It's a hexagon. I mean, it is a hexagon. I don't know. I guess this part, I think, re of the eastern star. Reporter: These are stars, right? I mean, they're triangles. I think it's kind of like one of those mind games where you see what you want to see. I really didn't even see what the symbol -- I just tapped it. It was some sort of, like, horned, horned head, like a cow head or something. And I pressed that button, and that's where all the problems went after that. Unbelievable. Nobody believed him. Reporter: Jason Dalton talked about seeing a devil somewhere? Do you have any idea what he was talking about? So, this is actually the Uber logo at the time on the passenger app. To me, it looks like a "U," but I think, to Jason Dalton, it may have been the devil horns right here at the top. Jason is not the first person to come up with a totally absurd justification for killing someone. This Uber thing, when it takes you over -- I know this sounds -- He said the Uber app changed from red to black, and he got an assignment. So it was like he was a puppet. It was red when I first started. Okay. From red to black. When it's in that black mode, it literally has control of you. Reporter: What's he talking about? I'm not really sure. I mean, the only thing I could think of when he said that is the surge pricing. Whenever there's surge pricing, you're going to see large swaths of red on the driver app. Reporter: It looks like most of the screen is red. As you can see on the app, there is not much black. There are a couple times where there is going to be a little more black on the screen. This is what a ride request looks like. So, at this point, there's a lot more black on the screen. I wasn't believing any of it, but if it's something that's gonna make him talk, you're not going to want to shut him down. And then it would do little blinks at me. The phone would? Mm-hmm. And then I didn't understand what those signified. Well, what does it signify? I believe that one ding means yes, and two Dings means no. In terms of what? What it wants you to do. When you get a request from a passenger, you hear a dinging. Reporter: So there's no one ding or two ding? It's a dinging noise. It will keep dinging for 10 to 12 seconds unless you tap the screen to accept the ride. He said he was hearing these sounds coming from the phone, and he said that was the reason why he did not shoot the police officers. When they pulled over, I almost reached for my gun. But then the phone went beep, beep, beep. And I reached over and I tapped the phone to stay logged in. It was weird. He the app went from being black back to being red. Okay, so, when the officer stopped, it felt like -- Yeah. Whatever it was had ended. And that's the reason I didn't -- Shoot him? Yeah. Exactly. So, the minute that the app went from black to red, it was back, I had my presence. Reporter: Do you think he was just making it up as he was going along? I have no idea. How do you go from being a Normal man with no criminal history to killing all of these people in one night? I remember both his mom and dad just crying, saying, we just spent Christmas with him, and he was fine. How can this happen? Many people, most of us, I suppose, have some homicidal ideation. We obviously don't act on it. To get from thinking about that to actually doing that, there's usually some event. Some trigger. Reporter: Did Jason Dalton have marital trouble? Not that we are aware of. Reporter: Did Jason Dalton have any known emotional trouble? Not that we were aware of. None. Reporter: Criminal record? Nope. Zero. Reporter: Financial problems? Not that we know of. Reporter: Was he an extremist of any kind? There's no evidence of that. In my view, there is nothing obvious that sort of stands out. Can you really sit here and say what caused Jason to do that? And I think the answer is, we just don't know. So, is using the excuse of the Uber app a way to be thinking, I'm going to have an insanity defense? Uber app. Was he that smart? And I think the detectives also thought that, that this guy is teeing the ball up of, I'm not in my right mind and I might be able to get out of this. The problem is, he is so rational throughout the entire interview. He basically blows his own cover story. For Jason, the next step is facing a judge in court. His victims are going to have to figure out how to move on. She walked in and she said, honey, you were shot in the head. And I went like this and touched

This transcript has been automatically generated and may not be 100% accurate.

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