Deaths by beating in the United States

Jeffrey Lionel Dahmer (; May 21, 1960 – November 28, 1994), also known as the Milwaukee Cannibal or the Milwaukee Monster, was an American serial killer and sex offender who killed and dismembered seventeen males between 1978 and 1991. Many of his later murders involved necrophilia, cannibalism, and the permanent preservation of body parts—typically all or part of the skeleton.Although he was diagnosed with borderline personality disorder (BPD), schizotypal personality disorder (StPD), and a psychotic disorder, Dahmer was found to be legally sane at his trial. He was convicted of fifteen of the sixteen homicides he had committed in Wisconsin and was sentenced to fifteen terms of life imprisonment on February 17, 1992. Dahmer was later sentenced to a sixteenth term of life imprisonment for an additional homicide committed in Ohio in 1978.
On November 28, 1994, Dahmer was beaten to death by Christopher Scarver, a fellow inmate at the Columbia Correctional Institution in Portage, Wisconsin.

Michelle Gardner-Quinn (January 28, 1985 – October 2006) was an undergraduate at the University of Vermont who was kidnapped on October 7, 2006. Her body was later found along a road in the neighboring town of Richmond on October 13.

Kelsey Shelton Smith-Briggs (December 28, 2002 – October 11, 2005) was a child abuse victim. She died at the home of her biological mother Raye Dawn Smith, and her stepfather Michael Lee Porter. Her death was ruled a homicide. Kelsey had been "closely" observed by the Oklahoma Department of Human Services from January 2005 up to and including the day of her death.

Imette Carmella St. Guillen (March 2, 1981 – February 25, 2006) was an American graduate student who was raped and murdered in New York City. She was studying criminal justice at John Jay College of Criminal Justice in New York City. Her murder captured national attention; together with the later murder of Jennifer Moore, it was a catalyst for passage of legislation to require background checks of bouncers in bars and a security plan for nightclubs. Darryl Littlejohn, a bouncer, was convicted of St. Guillen's murder.