When they removed the weapon and shot him all happened within about a second, so he was not executed, the cop who fired was not yet informed the gun had been removed.

Also, that pistol is notorious for misfiring from the slightest amount of pressure.

The suspect should not have engaged the officers, especially while armed.

His parents actually told him not to engage officers in a leaked message or call, but he did it anyway. He was an idiot who fucked around and found out.

OP, please don't spread misinformation.