Now imprisoned, this man has been serving a life sentence in prison since 2014 when he was found guilty of three murders. But recently, he made a chilling revelation to the police. He admitted to having murdered 93 people in total, which would make him the most prolific serial killer in American history.As of now, the FBI have confirmed 50 of these murders and believe his confessions to be entirely credible. Investigators have since released this man’s confessions online in an attempt to get people to come forward with evidence and to make statements. In his confession tape, Samuel Little describes his victims that have not yet been identified, their age and what they were wearing at the time.Most prolific serial killer in US history, Samuel Little, confesses to 93 murders over four decades pic.twitter.com\/kM1Qv6hbQx— TRT World (@trtworld) October 19, 2019‘She was pretty. Light skinned, brown, honey-coloured skin. And she was about 5… she was tall… she was tall for a woman,’ whispers the murderer in front of the camera. At the same time that they released this tape, the FBI also published drawings of these people that the murderer had done himself.The FBI has confirmed that most of these deaths were initially ruled as overdoses, accidental deaths or with undetermined causes. Some bodies have never been found.Arrested during a drug-related caseAs a former boxer, Samuel Little is also known by the name Samuel McDowell, and it is believed that he was to active between 1970 and 2005. He was arrested in 2012 in a homeless shelter in Kentucky, as several media sources have reported.After he was moved to California as part of a drug-related case, he was then identified by his DNA. The authorities managed to connect him with three other murder cases that hadn’t been solved at the time. These cases involved three women who had been beaten and strangled to death in Los Angeles between 1987 and 1989. He was sentenced in 2014.