I wouldn't blame him for ending his life. I would say there is responsibility however on his part, to have found and kept enough support around him to counter-balance whatever he was diving into; There's also responsibility on society's part to provide and facilitate that support - and to make sure powers/controls are kept in check and balance (proportional to the alleged offense, and based on society's evolving values). Perhaps he thought he was though and underestimated the pressures and how it would affect him. Sometimes when I have eureka moments, on the positive side, they initiate a very powerful chain reaction in my thinking and focus. I could see the same thing happening if you've created lots of justifications as to why "pending doom" may not hit you, may not be real - and something could happen that makes it very real and all of that pending doom could flood in and cascade as doom.