Peter Britton Tobin (27 August 1946 – 8 October 2022) was a Scottish serial killer and sex offender who served a whole life order for three murders committed between 1991 and 2006. Police also investigated Tobin over the deaths and disappearances of other young women and girls.

Paul Kenneth Bernardo (born August 27, 1964), also known as Paul Jason Teale, is a Canadian serial rapist and serial killer dubbed the Scarborough Rapist, the Schoolgirl Killer and, together with his former fiancée and later wife Karla Homolka, one of the Ken and Barbie Killers. He initially committed a series of rapes in Scarborough, Ontario, a district of Toronto, between 1986 and 1990, before committing three murders with Homolka between 1990 and 1992; among these victims was Karla's younger sister, Tammy Homolka.

Morris Levy (born Moishe Levy; August 27, 1927 – May 21, 1990) was an American entrepreneur in the fields of jazz clubs, music publishing, and the independent record industry. Levy was cofounder and owner of Roulette Records, founding partner of the Birdland jazz club and the Roulette Room.

Talduwe Ratugama Rallage Weris Singho, better known as Talduwe Somarama Thero (27 August 1915 – 6 July 1962) was a Ceylonese Buddhist priest who shot and killed S. W.

Rustaman Makhauri (born 1978) is a Chechen military commander and a close associate of Doku Umarov, the anti-Russian underground Chechen leader. He is suspected of being responsible for a series of attacks against the forces loyal to the governments in Chechnya and neighboring Ingushetia.

Gundolf Köhler (27 August 1959 – 26 September 1980) was a German far-right terrorist who planted a bomb at the 1980 Oktoberfest in Munich, killing 13 people (including himself) and injuring more than 200 in what is known as the Oktoberfest bombing.

Edward Theodore Gein (; August 27, 1906 – July 26, 1984), also known as the Butcher of Plainfield and the Plainfield Ghoul, was an American murderer and body snatcher. His crimes, committed around his hometown of Plainfield, Wisconsin, gathered widespread notoriety in 1957 after authorities discovered that he stole corpses from local graveyards and fashioned keepsakes from their bones and skin.