Mark Reale, the founding guitarist of the legendary metal band RIOT, passed away yesterday (Wednesday, January 25) in a San Antonio hospital due to complications of Crohn's disease — an ailment he has battled for most of his life. He was 57 years old.

Reale had reportedly been in a coma for the past two weeks after suffering a subarachnoid hemorrhage on January 11.

RIOT said in a statement: "To friends and fans of Mark Reale and RIOT, we are deeply saddened to confirm that Mark has lost his battle with a lifelong illness. Your thoughts and prayers are appreciated by Mark's family, friends, and bandmates at this difficult time."