‘Jackass’ Ryan Dunn Cause Of Death -- Blunt Force And Thermal Trauma

Jun. 21 2011, Published 2:23 p.m. ET
RadarOnline.com Police Reporter
Jackass star Ryan Dunn and his passenger, Zachary Hartwell, died of "blunt force and thermal trauma," the Chester County, PA Coroner tells RadarOnline.com.
Officials say both men died by the time emergency workers arrived at the scene.
The written autopsy report won't be released for at least a month due to toxicology tests being undertaken. These tests will determine if alcohol played a role in the accident
- Johnny Knoxville’s Estranged Wife Demands Primary Custody Of Their Kids, Spousal Support In Divorce Battle
- 'Jackass' Star Bam Margera Dismisses Lawsuit Against Johnny Knoxville
- PETA Fires Off Letter Demanding 'Jackass Forever' Be Investigated For Animal Cruelty, Weeks After Bam Margera Sues Ex-BFF Johnny Knoxville
Police maintain that speed may have been a factor in the fiery crash which occurred in the early hours of Monday morning.
Jackass Star Ryan Dunn's DUI History
Jackass Co-Star Bam Margera Blasts Roger Ebert Over ‘Drunk Driving’ Tweet
Jackass Star Tweeted Pic Of Himself Drinking Prior To Car Crash