Todd Christopher Kohlhepp (né Sampsell; born March 7, 1971) is an American serial killer, mass shooter, serial rapist, animal abuser, and kidnapper who was convicted of murdering seven people in Spartanburg County, South Carolina, between 2003 and 2016. In addition, Kohlhepp kidnapped and raped at least two women and claims to have killed many more.

Mikhail Viktorovich Popkov (Russian: Михаи́л Ви́кторович Попко́в; born 7 March 1964) is a Russian serial killer, rapist, and necrophile who committed the sexual assault and murder of eighty-seven girls and women between 1992 and 2011 in Angarsk, Irkutsk, in Siberia, and Vladivostok in the Russian Far East, although he has confessed to and is suspected of at least ninety in total. He is known as "the Werewolf" and "the Angarsk Maniac" for the particularly brutal nature of his crimes; he would extensively mutilate the bodies of his victims and perform sexual acts on them.

Reinhard Tristan Eugen Heydrich (; German: [ˈʁaɪnhaʁt ˈtʁɪstan ˈʔɔʏɡn̩ ˈhaɪdʁɪç] ; 7 March 1904 – 4 June 1942) was a high-ranking SS and police official in Nazi Germany as well as one of the principal architects of the Holocaust. He held the rank of SS-Obergruppenführer und General der Polizei.