It would be interesting if they ever release details on the perps gunshot wounds.
Going back to the Michael Brown shooting, multiple hits with a 40, and only the last to the top of the head was incapacitating.
"Scholars" are getting bigger, fatter, and more drugged, and police need more powerful sidearms.

And you’ll note all the initial rounds before the fatal head shot to Brown, were center of mass.
And you’ll note all the initial rounds before the fatal head shot to Brown, were NOT center of mass.
10mm might suffice.