If you would applaud the arrest of some body fat, creepy dude who raped an underage girl 30 several years in the past, then you need to applaud the arrest of Polanksi. Gale Weathers (Courteney Cox) shoots Billy to stop him from killing Sidney, who then finishes Billy off with a bullet to the head, citing the point that "They Always come back," a common horror cliché, and now her catchphrase.