That is an unbelievable piece of shit action by Garrett. Even before the helmet attack what the feck was he doing with Rudolph after the QB hit? He got to him and then was trying to take him down. Did something happen in the game previously?
Garrett's initial action was basically nothing more than a personal foul/roughing the passer type penalty. Rudolph was frustrated at being so shit and throwing 4 picks, which resulted in him reacting to Garrett's unnecessarily rough sack by attempting to remove Garrett's helmet, which obviously sent Garrett into an uncontrollable rage. Garrett is clearly the aggressor in all of this but the NFL won't ignore Rudolph's actions as completely innocent, nor Maurkice Pounecy's WWE reaction to Garrett's helmet swing.