Samuel Little has confessed to 93 murders, and FBI crime analysts believe all of his confessions are credible. Law enforcement has been able to verify 50 confessions, with many more pending final confirmation.
Little admitted 93 murders, mostly women, between 1970 and 2005, the FBI said.
A 79-year-old man killed at least 50 people, making him the most prolific serial killer in U.S. history, the Federal Bureau of Investigation (FBI) said on Sunday.
Although the investigation only confirmed his involvement in 50 murders, they believe Little’s confession is credible.
The FBI has set up a website that shows him recording a collection of unknown murders, in addition to a sketch made by Little about his alleged murder.
However, most of the victims’ deaths were initially confirmed to be due to overdose or by accident or cause unknown.
“Some bodies have not been found”, the FBI said on the website.
Little was sentenced to life in 2014 after being convicted of three murders.
For many years, Samuel Little believed he would not be arrested for thinking no one would count his prey.
“Although he is in jail, the FBI believes it is important to get justice for all victims, to cover all possible cases”, said FBI crime analyst Christie Palazzolo.
The former boxer, also known as Samuel McDowall, was arrested in 2012 at a homeless shelter in Kentucky and extradited to California on drug charges.
There, DNA evidence linked him to three previous cases, leading to a conviction in 2014 killing three women in Los Angeles between 1987 and 1989.