The "perfect father and husband," Mikhail Popkov was the Siberian policeman responsible for the deaths of approximately 30 women who reminded him of his chronically alcoholic mother who had abused him in childhood. He picked his victims up in his police car and drove them deep into the forest, never to be seen alive again. John Norman Collins was the Co-Ed Killer believed to have abducted, raped, beaten, and murdered at least five young women within a 15-mile radius of Washtenaw County, Michigan. Rodney Alcala was described as a "killing machine." He "toyed" with his victims, strangling them until they lost consciousness, then waiting until they revived, and sometimes repeating this process several times before finally killing them. Addicted to Murder is the story of these men and others like them, some of the most dangerous individuals who have ever lived. This book unpacks what motivated them to murder, how they operated, and how they were brought to justice.