Christopher Scarver is a convicted murderer whose physical assault on Jesse Anderson and serial killer Jeffrey Dahmer at the Columbia Correctional Institution resulted in the death of both Anderson and Dahmer. Already sentenced to life for killing a man named Steve Lohman, Christopher Scarver received two more life sentences for killing Anderson and Dahmer.
Lee Boyd Malvo was involved in the Beltway sniper attacks of 2002, which killed 10 people and injured three in the Washington Metropolitan Area. He had befriended his accomplice in the act, John Allen Muhammad, as a juvenile. Malvo is currently serving multiple life sentences at a supermax prison.
Known as the Beast of the Bastille, French serial killer and rapist Guy Georges grew up in the social care system and was a troubled youth. He was later convicted of raping and killing 7 women, while he also assaulted at least 13 more women. He was eventually sentenced to life imprisonment.
Jacques Plumain is a French serial killer who murdered at least two women in France and Germany between 1999 and 2001. He was convicted and sentenced to life imprisonment in 2005. He served 15 years of his sentence before his release in January 2021. The murders inspired a couple of TV documentaries.