--Support murder? No. Where did I say that? --
"He only did what he said he would."
If someone told you they would kill you for setting foot on their property and you chose to ignore that, I would rate your actions as foolish, without espousing the idea of someone killing you. I suppose you would also ignore "Beware of Dog" signs, "Danger High Voltage", "Achtung: Minen!", and "Do not use this product while taking a shower" as well.
He warned them and they proceeded without good judgement, imo.