Yelchin's friends became alarmed because he was supposed to meet them hours earlier for a rehearsal. They went to his San Fernando Valley home at around 1 AM and found him pinned between his car and a brick mailbox, which was attached to a security gate...
Law enforcement tells us the engine was running when his body was discovered, and the car was in neutral. The driveway was on a fairly steep incline. It's unclear why he got out of the car.
J.J. Abrams, whose Bad Robot Productions produced recent "Star Trek" features, took to twitter to voice dismay about Yelchin's death, saying: "Anton, you were brilliant. You were kind. You were funny as hell, and supremely talented. And you weren't here nearly long enough. Missing you..."