He died of a heart attack whilst walking the dog --_-- Of course nobody knows how the Hell he died as far as I know that statement above could be completely true, you never know with Capcom. Maybe he was killed by a swarm of fairy goldfishes with pretty and sparkling pink wands of death, who knows? Sounds rather logical if you consider that a bunch of demons are roaming around and killing everyone whilst you blow the crap out of them with guns.
And it is spelt Sparda.