If I were there it would have ended very quickly.
I would have pulled my one of girlfriends, a Kimber Tac II or Kimber Eclipse Target II(twins) and emptied it into him, reloaded , walked over to hs body and he likely would flinch forcing me to empty the New mag in his head.
I also carry either a full-size Kimber 1911 Eclipse Target II or a Kimber 1911 Stainless Custom TLE II, Wilson Combat mags, 230gr HPs, with 2 dbl extra mag holsters.