Every since he was 9 years old he has suffered from dysthymia, a chronic low grade depression, that flares up every 4-5 years into a major episode. It was during one of those periods that excess self-medication almost killed him when he took 180 sleeping pills coupled with two bottles of wine.
http://globalnews.ca/news/1923533/ontario-bar-association-president-speaks-out-about-depression/