Todd Frohwirth, submariner pitcher for Phillies, O's, Red Sox, and Angels. He was only 54. Stomach cancer. Way too young.
I remember watching him many years ago at an Orioles game when the umpire tossed him for some reason. He was so angry that he threw a major fit, throwing his glove, his cap, and the ball all over the field. The funniest thing was that he submarined them all when he threw them.