Punisher
The Punisher (whose real name is Frank Castle) is a vigilante who uses unorthodox methods like murder, torture, and kidnapping in his crusade against crime. His family was murdered in New York City's Central Park after witnessing a mafia assassination. Frank Castle then turned into the "Punisher", a man who vowed to kill criminals, terrorists and gangsters of all kinds. Castle also wears a kevlar costume with the peculiar design of a human skull in his chest, of which, according to Castle himself, acts both as a distraction and a tool of intimidation, as it would draw the attention of criminals in that direction, and instead of aiming at his head, they would shoot his costume, which he wore with a rather solid armor beneath. In addition, his skull symbol has psychologically affected many of the criminals he faced off.