"Jackass" star Ryan Dunn and his passenger, Zachary Hartwell, were killed by blunt-force trauma and flames after Dunn's Porsche went over a guard rail, hit a tree, and burst into flames, a coroner's report concluded.
West Goshen, Pa., police arrived around 2:38 a.m. Monday, and the two were declared dead at the scene, the Chester County Coroner's Office told TheWrap.
Also read: Dunn Had 23 Driving Citations, Including DUI
There is no finding yet on whether alcohol was a factor in the crash, but police said speed was believed to be a cause.
The Philadelphia Inquirer reported that Dunn had 23 driving citations, including a DUI, in the 13 years before his death. A man who drank with Dunn in the hours before his crash, meanwhile, described a binge in which Dunn had four shots and beer before getting behind the wheel.
Dunn tweeted a picture of himself and Hartwell (above; Dunn on left, Hartwell opposite on right) drinking in a bar before the crash.