********************************************************************** Are you thinking of Sonny Bono?
Actually, both Sonny Bono and the Kennedy family member mentioned above (sorry, I can't recall the first name) died within a week or so of each other after hitting a tree while skiing. Bizarre.
Michael Kennedy, son of Robert - skiing death
http://www.cnn.com/US/9712/31/kennedy.update.2/
Michael Kennedy is the one that hit a tree beside Sonny Bono.
Michael Kennedy I think; affair w 14 yr old/