A 15-year-old teenager takes his parents' car on a joy ride. A decision that would have lifealtering consequences. >> There's three unconscious females in a white car in here. >> Three. >> Three unconscious cars. >> Have three unconscious females in one of the cars for air. >> One of the vehicles. >> And there's a person in the back. We can't reach this door. >> There you go. >> Oh my god. >> I got it. I got it. She's breathing. She's breathing. Do you remember about how fast you were going? >> 45 50 I was going over. I think that's how much I was going. >> But the evidence would show different. Michael was speeding at 82 mph 2 seconds before impact. Evidence from the car's black box shows he actually accelerated in the seconds before the impact. He was arrested at his home and the case is pending.