James Michael Coonan (born December 21, 1946) is an Irish-American mobster and racketeer from Manhattan, New York who served as the boss of the Westies gang, an Irish mob group based in Hell's Kitchen, from approximately 1977 to 1988. Coonan was incarcerated and began serving a 75-year prison term in 1988.

Oleg Viktorovich Rylkov (Russian: Оле́г Викторович Рылько́в; born 21 December 1966), known as the Tolyatti Ripper (Russian: Тольяттинский потрошитель, romanized: Tolyattinsky potroshitel), is a Russian serial killer, rapist and pedophile. Between 1992 and 1997, he raped 37 (some sources say 39) underage girls and killed 12 people in the city of Tolyatti, in the Samara Oblast.

Larry William Eyler (December 21, 1952 – March 6, 1994), also called the Interstate Killer and the Highway Killer, was an American serial killer who murdered a minimum of twenty-one teenage boys and young men in the Midwest between 1982 and 1984. His victims were all discovered in locations close to or accessible via the Interstate Highway System in the states of Indiana and Illinois.

Paolo Rosario De Stefano (Italian pronunciation: [ˈpaːolo roˈzaːrjo de ˈsteːfano]; born December 21, 1976, in Melito di Porto Salvo) is an Italian mobster and member of the 'Ndrangheta. He has been a fugitive since 2005 and was included on the list of most wanted fugitives in Italy.