re: Store robbery gone wrong or right? Caution -Graphic-ish

After review looks he was just working the knife for whatever he could find not sure he was using a specific technique. I count at least 3 good hits that could have been fatal depending on blade length.
Kidney/ lower lung, thigh shot possibly nick femoral but it was to outer thigh so probably not,
Neck stab dude went limp so possibly hit on spine but that would be luck hitting between vertebrae.
Had he really wanted to end it he would have moved the blade up 4 inches and put it in the off switch.