Martin had been part of the 1960's band "Dino, Desi, and Billy" and had at one time been married to Olympic skater Dorothy Hamill.
He was also married and divorced from actress Olivia Hussey who played young "Juliet" from "Romeo and Juliet"(1968or69). I remember reading that when she heard the news, she was so stunned, she got up out of her chair where she was having lunch with a friend, and walked out. I think that was how the story went.(I could be wrong, though). Even though they had split up, they were still friendly.