It matters. It was either murder or self-defence. Kenny was a... doodie head for doing what he did. All these people talking about a defibrillator restarting a heart have watched too much TV. I'm 90% sure that in real life, it's used for irregular heart beats, not non-existant ones.
On a side note, if you swear in front of Clem in Ep 1, does she then swear in Ep 2?