Jack runs his "tribe" like a militant dictator in Lord of the Flies. Anyone who goes against him is severly punished by his cronie, Roger. One of the littl'uns ws accused of stealing and Jack had him whipped. When Piggy dared to speak up to Jack, Roger rolled a boulder on him, killing him. Because Ralph was viewed as a threat to Jack's power, Jack decided that the best way to handle the situation was to hunt Ralph... with a double pointed spear. Apparently it was his intention to use one end of the stick to put in the ground and the other end for mounting Ralph's head! It's what Jack did to one of the pigs he killed as an offering to the "beast". However, the only real beast on the island was Jack (and Roger...).