so ditch the old way of selling your car, and say hello to the new way at carvana. >> reporter: dan mockbee says back at home, he started hearing about an incident at the warehouse. >> they weren't letting people into the building. they were turning them away. >> reporter: dan says he tried calling his wife and other co-workers, but no one was picking up. >> and that's when i started getting nervous. >> reporter: he drove over and was escorted inside by detective stahl. >> i looked at him, and i said, "excuse me, officer. my wife works here. i really need to know that she's all right." and that's when he told me that she was deceased. >> his reaction was pretty excruciating to watch. i still had to press on, and i still had to move forward with my looking at him as a possible suspect. >> reporter: when police asked you where you were at the time your wife was killed -- >> i was doing what most sensible people are doing at 6:00 in the morning if they don't have to get up and go to work. i was sleeping. what a great alibi, right? i'm home in bed. it's not a very good alibi, but it's the only