( CNN ) -- `` Jackass '' star Ryan Dunn was drunk and speeding up to 140 mph when his 2007 Porsche 911 GT3 crashed and caught fire on a Pennsylvania highway early Monday , police said Wednesday . Dunn and Zachary Hartwell , a 30-year-old West Chester , Pennsylvania , man who once worked in one of Ryan 's movies , died from `` blunt and thermal trauma '' in the fiery crash , according to the autopsy report released Tuesday . `` The initial crash reconstruction investigation determined that Mr. Dunn 's vehicle was traveling between 132-140 mph at the time of the collision , '' West Goshen Police Chief Michael Carroll said in a statement Wednesday . Toxicology testing by the coroner indicated Dunn 's blood alcohol concentration was 0.196 % , which is more than twice the legal state limit of 0.08 , Carroll said . The red-bearded Dunn , 34 , was famous for his pranks and dangerous stunts on the show , which evolved into a successful film franchise . Hartwell worked as a stunt car driver on `` Minghads , '' a 2009 comedy directed by `` Jackass '' star Bam Margera and featuring Dunn , according to the Internet Movie Database . West Goshen Police were called to the wreck scene on State Route 322 at 2:30 a.m. Monday , the police report said . `` Upon arrival , police located one vehicle off the road and in the woods that was fully engulfed in flames , '' the report said . Dunn was driving the Porsche , which was registered in his name , police said . A photo of Dunn was posted on his Twitter account about two hours before the wreck showing him with a drink in his hand . Two men sitting with Dunn in the photo are not identified . The manager of Barnaby 's in West Chester confirmed that the photo was taken in his bar Sunday night . The bar is about a mile away from where Dunn was killed in a car crash . Manager Jim O'Brien confirmed that Dunn was drinking there . `` He did n't seem to be intoxicated at the time he left , '' O'Brien said . `` Ryan was not a hardcore drinker , at least not when he was here . '' O'Brien said Dunn was a regular customer and well known to his staff . `` He was a valuable person in our community and his death is a tragedy , '' O'Brien said . `` He will be missed . '' Dunn teamed up with `` Jackass '' co-star Steve-O for an episode of the NBC game show `` Minute to Win It '' that aired on June 8 . He also hosted `` Proving Ground , '' which premiered on the G4 channel on June 14 .
Dunn 's blood alcohol level was twice the legal limit , police say . His Porsche was speeding up to 140 mph , police say . Dunn and his passenger died from ` ` blunt and thermal trauma , '' the coroner said . Dunn was known for pranks and dangerous driving .