Leonard John Fraser (27 June 1951 – 1 January 2007), also known as The Rockhampton Rapist, was an Australian convicted serial killer and rapist.

Salvatore Russo (Italian pronunciation: [salvaˈtoːre ˈrusso]; born 27 June 1958 in Nola) is an Italian Camorrista and boss of the Russo clan from Nola, which he co-founded. He has been running the clan together with his brother Pasquale for over thirty years.

Norio Nagayama (永山 則夫, Nagayama Norio; June 27, 1949 – August 1, 1997) was a Japanese spree killer and novelist.

Vincenzo Licciardi (Italian pronunciation: [vinˈtʃɛntso litˈtʃardi]; born June 27, 1965) is the boss of the Licciardi clan, and one of the main leaders of the Secondigliano Alliance, a Camorra crime syndicate operating in Naples and the surrounding Campania region. His nickname is 'o Chiatto ("Fatso").

Mark Alan Smith (born June 27, 1949) is an American serial killer who killed at least four women in Illinois and Arkansas during the 1960s, and was sentenced to 500 years' imprisonment for three of the deaths. Smith later confessed to killing eight women while stationed as a soldier in West Germany, for which he was never prosecuted, and authorities believe he could be involved in other murders, both in the US and overseas.

Piotr Śmietański (27 June 1899 – 23 February 1950) was a Polish non-commissioned officer and communist functionary in the Ministry of Public Security and executioner at Mokotów Prison.

The Hanau shootings (German: Anschläge in Hanau) occurred on 19 February 2020, when ten people were killed and five others wounded in a terrorist shooting spree by a far-right extremist targeting three bars and a kiosk in Hanau, near Frankfurt, Hesse, Germany. After the attacks the gunman, Tobias Rathjen, returned to his apartment, where he killed his mother and then committed suicide.