More like kills.
I know you are american, but please, even you should know that getting stabbed in the heart will instakill.Stabbing in the Kidney also kills, but slower.
I know you are European, but could you take that ancestral stick out of your lilly white ass?
If we really want to nit-pick, stabbing someone in the heart will not insta-kill them, they will still live for a very short time after that, and it will undeniably hurt. Hell, if you leave the weapon in, then it would even be possible with modern day science to actually live long enough for the hospital to fix you up. Even back in the middle ages though, being stabbed in the heart will not "insta-kill" you, and you will still be conscious and upright for an appreciable (though short) amount of time, though you will of course die shortly thereafter.
Brush up on your schooling. Were you really taught (Hey, you pulled that card so yeah I am going to jump on you for that) that "Everyone knows if your heart is punctured you instantly die like a gunshot to the head!" Amazing... Being lectured by an uppity idiot I am...
Hey, if we want to hurl insults based on nationality/origin here... *shrugs*
Either you woke up on the wrong side of the bed and were in a bad enough mood to babble, or you really are an absolute moron when it comes to basic human biology. Congratulations on getting schooled by "an american" when you are trying to sound smart (and miserably failing). Anything else you want to "correct" me on while sounding like a pompous asshole?