School Shooter Killers

Willy Inmon is identified as a 'vigilante killer' in the title of the episode, suggesting he committed acts of violence under the belief of enforcing law and order.

Kenneth Regan is a convicted murderer, featured in the documentary.

Ali Qazimaj is a known killer featured in World's Most Evil Killers.

Serial killer Jerry Brudos is the subject of this episode, known for his grisly crimes against women in the late 1960s.

Billy Dunlop is a serial killer who is the subject of World's Most Evil Killers, Season 5, Episode 6.

Peter Moore is a killer, focus of World's Most Evil Killers Season 4, Episode 16 (2021)

Robert Napper is a convicted killer responsible for a series of violent crimes and murders in the UK.

William Suff is a serial killer featured in the episode