Vigilante

A vigilante bypasses the law and takes matters into his own hands.

These streets see more and more outbreaks of vigilante violence.

Vigilante violence against those of a different political persuasion is counterproductive.

"I wish I was part of a worldwide volunteer vigilante nunchuck patrol. I'd be like swish-swish-smash! Oh, sorry I broke your arm, criminal," said Tom.

Tom was shot to death by a vigilante.

A vigilante shot Tom.

Tom has a secret identity as a masked vigilante.

A vigilante ghost is going around avenging his own brutal murder.

There was a strong argument for trying Tom, convicting him of treason, and executing him. Unfortunately, that day will now surely never come, as he's been killed by a vigilante.

For example, a voice accusing a man of being a paedophile might be based on recent TV news programmes about antipaedophile vigilante groups, plus the memory of having been accused of being a pervert by a neighbour, plus fears that he might be a secret paedophile because he enjoyed reading Lolita.