ShadowZero
"Well. you were without a pulse, laying on the ground. Well, im a bit sorry to say but now youre tecnically an undead, dont worry though, your face wont rot up and look like my nonexistant one, just as long as you just do your organic things it should be fine."
(As an undead, you dont really need sleep, food or water, though if you want to look fully alive still you still need to do that. You wont die of age, but your more organic parts will age and eventually rot. Sharp attacks dont really damage you unless it strikes through your skeleton.)