Did his "standing on a motorcycle @ 60 mph with no helmet" trick. Well, I guess technically he really didn't do the trick but tried, still, he is no more.
http://www.charlotte.com/mld/charlotte/entertainment/gossip/9533189.htm-relevant snip
Indian Larry, a master motorcycle mechanic and stunt man, passed away this morning following an accident while performing Saturday at the Liquid Steel Classic and Custom Bike Series show at Cabarrus Arena and Events Center in Concord. He was best known for his appearances on Discovery Channel's "Great Biker Build-Off" show.
"He was riding and standing up on his seat," said Mike Downs, Cabarrus County deputy county manager. "The bike started to wobble and he was not able to regain control."
Indian Larry fell off the bike before a crowd of about 8,000. He was not wearing a helmet. Paramedics were standing by and aided him until he could be airlifted to CMC, Downs said.