Jackass Star Ryan Dunn Dead at 34

It's the tragic death of Jackass star Ryan Dunn.

Just two hours before he was killed in a horrific car wreck, Dunn posted a photo online. In the phone he was drinking with two buddies.

34-year-old Dunn was killed at 3 a.m. Monday when his Porsche hit a tree outside Philadelphia and burst into flames.

An unidentified passenger was also killed in the crash.