Police say 18-year-old Trevor Heitmann was behind the wheel of a $200,000 McLaren sports car that barreled down the wrong side of the road.
The accident killed Heitmann, a 43-year-old woman, and a 12-year-old girl.
Investigators say Heitmann had a popular Youtube channel where he mostly discussed video games under the name "McSkillet."
According to authorities, Heitmann was struggling with depression when he caused the crash.