Conversation so far:
When did Tony Scott die?
Tony Scott died on 19 August 2012, at approximately 12:30 pm.
How did Tony Scott die?
Tony Scott died by suicide, jumping off the Vincent Thomas Bridge in San Pedro, California.
Does the article say how Tony Scott killed himself?
Tony Scott died by suicide, jumping off the Vincent Thomas Bridge in San Pedro, California.

Question: Why did he kill himself?
Self-contained rewrite: Why did Tony Scott kill himself?