That really sucks. I saw him at an Old-Timer's Game in Arlington several years ago. There were a huge number of great stars - Ernie Banks, Joe DiMaggio, Frank Robinson, Bob Gibson, etc. - but apart from DiMaggio it was Mark Fidrych who got the biggest ovation. I wish I could accurately describe the sense of wonder and fun that he brought to the game but that Birdmania of 1976-77 was beautiful. He seemed to take the end of his career in stride too, not getting caught up in what he'd lost but focusing on what he'd had.
A very tragic loss.