after that vid, there was only a low blow, maybe a shoulder...and then pac hitting the back of his head on the canvas, i think when he got hit by the low blow his legs gave in and the impact of torrecampo coming in, push pac backwards and made pac hit his head on the canvas,that was made him stun,boxing rings canvas are solid hard you hit your head on it your gonna be in worst shape.......ultimately that was a low blow, there was no legal punch.