Daisuke Mori (守 大助, Mori Daisuke; born April 28, 1971) is a Japanese nurse, who was convicted for giving lethal doses of the muscle relaxant drug vecuronium to his patients in a clinic in Izumi-ku, Sendai, Miyagi Prefecture. Although he was convicted of only one murder, he is suspected to be a medical serial killer.

Futoshi Matsunaga (松永 太, Matsunaga Futoshi; born April 28, 1961) is a Japanese serial killer who both defrauded and tortured his victims in what is collectively known as the Kitakyūshū Serial Murder Incident (北九州連続殺人事件). Matsunaga was convicted of six counts of murder and one count of manslaughter between 1996 and 1998 and sentenced to death.

José María Jarabo (28 April 1923 – 4 July 1959) was a Spanish spree killer, who between 19 and 21 July 1958, murdered four adults and an unborn baby. Jarabo was sentenced to death by garrote and executed in 1959.

Anthony Joseph Accardo (; born Antonino Leonardo Accardo, Italian: [antoˈniːno leoˈnardo akˈkardo]; April 28, 1906 – May 22, 1992), also known as "Joe Batters" and "Big Tuna," was a mobster in the American Mafia. In a criminal career that spanned nearly eight decades, Accardo rose from small-time hoodlum to the position of day-to-day boss of the Chicago Outfit in 1947, to ultimately becoming the power behind the throne in the Outfit by 1972.

Saddam Hussein (28 April 1937 – 30 December 2006) was an Iraqi politician and revolutionary who served as the fifth president of Iraq from 1979 until his overthrow in 2003 during the United States-led invasion of Iraq. He previously served as the vice president from 1968 to 1979 and also as the prime minister from 1979 to 1991 and later from 1994 to 2003.