"So, John. I point a gun at you. I tell you to get out of the way within five seconds or I shoot. You refuse, so I shoot you dead. I tell the police that you committed suicide."

Your premise has no relation to reality. A more realistic reading is that Hamas forces residents to be shields, in essence kidnapping them. That makes Hamas guilty of their deaths.

Also, Steve,I said, below, that I googled 'hamas kills palestineans' and found citations that Hamas actually kills Gazans. Can I be any clearer than that?