Pyrrus of Epirus
Taken out by a floor tile in 272BCE
This guy was one of the greatest military commanders in history and was a second cousin to Alexander the Great. In a battle at Argos, he found himself fighting a local man. His mother was on the roof beside the two men, and dropped a floor tile on Pyrrus’ head, allowing her son to finish him off.
That’s cheating.
There is a video of this on YouTube (honest). You can tell he was afraid to jump, but his handlers kept telling him it was too late to back out.
So all the way down, when he knew he was going to die, at least he had the satisfaction of being able to yell "I told you so!"