Wesley,

Fred walked away from performing and recording about 30 years ago. In that sense, he's been missed for a long time.

Fred was a junkie and needed to get away from the performer's life to get himself clean. He knew that if he didn't do something else with his life, he probably would not have made it to 40. His friends Tim Hardin and Tim Buckley ended up dead, Fred found the dolphins and lived for another 30 years.