Richard Norton, a martial arts and Brazilian jiu-jitsu expert who trained A-list stars for action films, has died. He was 75. Norton's wife Judy Green shared news of his death in an Instagram post late Saturday night.

A native of Australia who was pals with Chuck Norris, he worked in films including ‘The Octagon,’ ‘Twinkle, Twinkle, Lucky Stars,’ ‘City Hunter’ and ‘China O’Brien.’

Richard Norton, a veteran stunt performer and martial artist whose credits include 'The Suicide Squad' and 'The Octagon,' has died. James Gunn says 'the film world will be a less vibrant place without him.