Chuck Norris says he's "heartbroken" following the death of legendary martial artist and actor Richard Norton -- just one of many tributes.

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.’

Hollywood mourns the loss of martial arts expert, fight choreographer, and stuntman Richard Norton. He worked with many action movie stars. He was particularly close to Chuck Norris, with whom he shared a deep friendship.