Cary Anthony Stayner (born August 13, 1961) is an American serial killer and the older brother of kidnapping victim Steven Stayner. He worked as a mechanic in Mariposa County, California, and murdered four women between February and July 1999, dumping their bodies near Yosemite National Park, leading to him being dubbed the Yosemite Park Killer or simply the Yosemite Killer.

Carl Peter Herman Christensen (13 August 1869 in Særslev – 9 October 1936) was the last executioner (skarpretter) in office for the government of Denmark. He was hired by justice minister, Peter Adler Alberti and held the office from 27 August 1906 until 1 April 1926.

Willem van Eijk (13 August 1941 – 19 June 2019) was a convicted Dutch serial killer known as "Het Beest van Harkstede" (The Beast of Harkstede). He was convicted twice for a total of five murders.

Peter Kudzinowski (August 13, 1903 – December 21, 1929) was an American serial killer who was linked to at least three murders committed within a four-year span.