Killing Someone With A Healing Factor
I was just reading Ultimate X-Men, and in the fight between Wolverine and Sabertooth is the Weapon X storyline Sabertooth wonders what would happen if he tried to drown Wolverine and if his healing factor would help him somehow or if it would be useless.
This got me wondering, how would you kill someone with a healing ability like Wolverine and all the others like him. Has it been done before in a comic and if so how?
Go wild with your suggestions.