Jackass star Ryan Dunn died in a fiery car crash yesterday in Pennsylvania.

The 34-year-old daredevil was reportedly drinking at a West Chester bar before he got behind the wheel of his Porsche 911. A witness tells TMZ that Dunn was "wasted" and "had a lot to drink." Just hours before his death, he posted a photo on Twitter showing him drinking with friends. Dunn and his passenger both died in the accident. The car reportedly caught fire, and a tow truck was sent to the scene to pick up the wreckage.

His Jackass cohort Johnny Knoxville expressed his grief via Twitter, saying, "Today I lost my brother Ryan Dunn. My heart goes out to his family and his beloved Angie. RIP Ryan, I love you buddy." Film critic Roger Ebert was less sympathetic, tweeting, "Friends don't let jackasses drink and drive." Dunn's pal Bam Margera was not amused, tweeting, "I just lost my best friend. I have been crying hysterical for a full day and piece of sh*t Roger Ebert has the gall to put in his 2 cents."

In the wake of Dunn's death, G4 will stop airing his TV show Proving Ground, which premiered last week. He had already shot eight episodes for the show, in which he recreated famous stunts from movies and television.

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