Agency hopes sketches by Samuel Little, who has confessed to killing 90 women, may help solve dozens of homicides

This article is more than 1 year old

This article is more than 1 year old

The FBI has released sketches made by a serial killer of his alleged victims, in the hope that they may help solve dozens of unsolved homicides.

The agency released the drawings and other information on a string of cold-case homicides that investigators say Samuel Little has admitted to having carried out.

Convicted US murderer Samuel Little confesses to killing 90 women Read more

Samuel Little, who is serving a life term without the possibility of parole after being found guilty in 2014 of three murders in California, last year confessed to killing 90 women over nearly four decades, which, if confirmed, could make him one of the deadliest serial killers in American history.

The bureau updated on Wednesday information it had posted in November on its website, and posted the drawings by Little, which were based on his memories of some of his victims.

Facebook Twitter Pinterest Recent drawings by Samuel Little based on his memories of some of his female victims from various locations across the US. Photograph: HO/AFP/Getty Images

An FBI statement said Little targeted “marginalized and vulnerable women who were often involved in prostitution and addicted to drugs”. The bureau hopes the information will generate tips and clues from the public that could help solve the dozens of homicides.

The FBI says Little, who is 78, is in poor health and is expected to remain in a Texas prison.

The Texas Rangers say Little to date has confessed to 90 homicides nationwide over the past four decades. The Ector county district attorney, Bobby Bland, in Odessa, Texas, said 50 cold homicide cases had been closed as a result and most of the unsolved homicides remaining were in California.