(CNN) – Samuel Little, 79, confessed to strangling 93 victims between 1970 and 2005 last year, triple the number of victims Ted Bundy confessed to killing.
Now, the FBI is asking the public to help identify more victims of the man they say is the most prolific serial killer in the United States.
Women often from marginalized and vulnerable groups, many of them involved in prostitution or suffering from drug addiction. Their bodies were sometimes not identified and their deaths were not investigated.RELATED
The FBI hopes to change that.
"For many years, Samuel Little believed he would not be caught because he thought no one was telling his victims," said Christie Palazzolo, a crime analyst at ViCAP in a statement. "Although he is already in prison, the FBI believes it is important to seek justice for each victim, to close all possible cases."
That's where the public comes in. FBI crime analysts believe that the 93 victims Little confessed are credible, but so far they have only been able to verify 50 of them.
They have published information on five cases on the agency's website, "in the hope that someone remembers a detail that could boost the investigation."
Each case presented is accompanied by a video of Little explaining the incident and a portrait of the woman hand-drawn by Little.
The FBI has used this strategy before, in February, when it published 16 portraits of victims that Little drew.
Little is currently serving three life sentences in California. Before the FBI agents knew of their connection to these dozens of murders, the man was already imprisoned for beating and strangling three women.
Then, in 2018, agents noticed that his name appeared in connection with other unsolved murders across the country, especially one in Odessa, Texas. Texas ranger James Holland and two FBI crime analysts traveled to California to interview Little during May 2018.
Eventually, Little confessed to killing about 90 people.
CNN sent an email to the FBI for comments, as well as information on whether their charges are being updated, but we have not received a response.
Madeline Holcombe, Steve Almasy and Jamiel Lynch of CNN contributed to this report.