Jonathan Goodwin, a daredevil stuntman on the new "America's Got Talent: Extreme" suffered brutal injuries after a stunt he attempted went horribly wrong, and it was so bad people on the set thought he was dead.

Something went terribly wrong, and the cars smashed together, sandwiching Goodwin in between them.

Our sources say Goodwin was unresponsive after the crash, and people on the set thought he was dead.