LOTF Chapter 4: Jack's Face Paint

In chapter four of Lord Of The Flies Jack puts on face paint when he was with Roger. I think that his identity changed when he put the face paint on. Right after he started ordering Roger around, he told him "Samneric. Get me a coconut. An empty one." When he puts the face paint on he turns savage. The only other times he turns savage is when he is hunting or someone offends or insults him. On the same page it also says that the "mask" (which is the face paint) controls them. The twins were arguing with Jack and he said "'Come on! I'll creep you and stab-' The mask compelled them." I think the anger in Jack's face scarred them so much that they decided to agree and go with him to go hunt. My prediction is that Jack is going to go overboard with the savageness and is not going to be able to control it and he is going to end up killing Piggy. I think he is going to end up killing Piggy because so far in the book he is obsessed with trying to kill a pig, and he has been so cruel to Piggy.