Raffaele Cutolo (Italian: [raffaˈɛːle ˈkuːtolo]; 4 November 1941 – 17 February 2021) was an Italian crime boss and leader of the Nuova Camorra Organizzata (NCO), an organisation he built to renew the Camorra. Cutolo had a variety of nicknames including 'o Vangelo ("the gospel"), 'o Princepe ("the prince"), 'o Professore ("the professor") and 'o Monaco ("the monk").

Ramón Gustavo Castillo Gaete (20 December 1977 – 1 May 2013) was a Chilean murderer and leader of a doomsday-oriented religious sect stationed in Colliguay, a rural area in the Valparaíso Region, where he claimed to be the second coming of Jesus and was known as "Antares de la Luz" (from Spanish, "Antares of the Light").

Timofey Mikhailovich Podshivalov (Russian: Тимофей Михайлович Подшивалов; born 20 December 1991), known as The Zakamsky Maniac (Russian: Закамский маньяк), is a Russian serial killer who operated in Perm in 2011. He is considered one the worst killers in the history of Perm, although his exact motives remain unknown.

Nicolau Pereira de Campos Vergueiro, better known as Senator Vergueiro (Portuguese: Senador Vergueiro; 20 December 1778 – 17 September 1859), was a Portuguese-born Brazilian coffee farmer and politician and slave trader. He was a pioneer in the implementation of a free workforce, as opposed to slavery, in Brazil by bringing the first European immigrants to work in the Ibicaba farm, which he owned.

Alexey Vladimirovich Ryzhkov (Russian:Алексей Владимирович Рыжков; born 20 December 1972), known as the Rubtsovsk Ripper, is a Russian serial killer who raped and murdered four women and a teenage girl in Rubtsovsk, Russia, between 2000 and 2001. He was caught by police shortly after murdering his last victim, and subsequently sentenced to life imprisonment.

Pierre François Lacenaire (20 December 1803 – 9 January 1836) was a French murderer and poet.