An autopsy of Dallas Cowboys practice squad player Jerry Brown has shown that he was indeed sober when he was killed in a car crash that led to an intoxication manslaughter charge against his teammate Josh Brent, who was at the wheel.

The Dallas County Medical Examiner's Office reported Thursday that Brown died of head and neck trauma when their vehicle overturned. Brown suffered a dislocated neck, a severely bruised spine and a blood alcohol content of 0.056 percent. That's well below the Texas drunken driving standard of 0.08 percent.

Brown, 25, was a linebacker on the team's practice squad but had not played any games for the Cowboys. Prior to joining the Cowboys he had played one NFL game for the Indianapolis Colts

His teammate Brent, as reported by police, had a blood alcohol level twice the legal limit when after the Dec.8 crash.

In the report police said that Brent, 24, was driving at high speed on a state highway at 2:21 a.m. when his car flipped and then caught fire. The car was slammed into a "outside curb, causing the vehicle to flip at least one time before coming to a rest in the middle of the service road," police said.

Brent had been arrested for drunk driving before. While he attended and played on the University of Illinois football team, he was arrested Feb. 23, 2009 on a drunk driving charge, according to Champaign, Illinois, county records.

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