I love a good fairy tale!As he turns, I'll stab him through the shoulder, severing bone, brachial plexus, axillary artery up to the subclavian. Then, in one fluid motion, wipe out my CHL badge and bear hug him till he succumbs. If he somehow gets his pistol out with his offhand or abnormal nerve anatomy, I'll use my 5.11 sepa plates o deflect upcoming rounds in a safe direction (probably back at the perp, but i haven't been able to practice this at my personal dojo as the master doesn't let us practice with live ammo).
I will then wave at the adoring child masses whom I have saved. The most beautiful unaatached teacher will withdraw the knife, clean the blade with a handkerchief and hand it back with her number on it.
(I thought this tread needed some bluster)