I'll take legal view: he's gold. If someone puts a threat on another person, at least in Canada, defense laws extend to them. He didn't kick him in the head or go crazy, he just backed him up to keep her safe.
Judgment for the defendant
side note, i heard Judge Mathis on Sway and he is a cool ass dude. We mock him for chasing YTs, but he really did grind for his and make a way for others. They tried to hold up his law license, for 3 years, because it was "discovered" that he had served time prior to it. He went to the SCOTUS and won. He also talks about how AA is done as a policy, but that it helped him get out the poisonous environment to become educated and fly right.