Very sad indeed. He also did the fight choreography for Princess Bride and even did some work as recently as Lord of the Rings.
There's a few guys on the autograph forum on RS that are emailing with his family and pointing them to a thread with condolences from the SW community. If you feel compelled, you can post over there and share your memories and impacts his work had on your life. I'm sure it will help them in their time of grief.