woah! i had no idea. i love Matt ... he's an amazing bassist. thanks for letting me know dude .. my prayer will definately be with him. Matts not the reason i started playing bass but he is the reason ive kept playing the bass over the years. just one of those guys you listen to and think "well, ill never be that good but ill try".
for those unfamiliar with Matt hes been the bassist for:
basic radio
operation ivy
downfall
dancehall crashers
generator
rancid
social distortion (just on recent tour)
X (tho i think he played guitar in X)
transplants
(and a psychobilly band i forget the name of)
the man is a God and like jubjub said hes the best punk bassist ever