Heart attacks are so common. Another reason developers should watch and track their health (not saying Jim wasn't healthy). All the pizza and sugary caffeine drinks I've consumed just to keep coding probably wasn't smart.
He likely wasn't healthy; you just have to look at a picture of him to see that he was at least 50 lbs overweight (if not more). That much extra weight will increase your risk of heart attack significantly.
I don't mean to sound insensitive, but if we don't have men and women like Jim, Rake probably will never be here. The technology that exists today would never be if we didn't have people that have a passion for knowledge. On the flip side, I agree, we need to take better care of our health.
Damn, that sucks.
What was his cause of death?