Samuel Little, the Georgia-born serial killer who has spent months confessing to murders, is still telling tales — and now he’s drawing pictures.

The FBI on Tuesday released sketches the 78-year-old recently made of women he claims he killed, including three from Atlanta. Little, a lifelong drifter and failed boxer, was born in Taylor County in Middle Georgia and, in recent interviews from a Texas jail cell, has claimed that he murdered 90 people — all but two of them women — across the country, starting in 1970.

Little, who in 2014 was sentenced to life in California for three murders, is now in custody in Texas, where he is accused of murder and has been meeting regularly with authorities to discuss his killings.

Georgia-born serial killer Samuel Little says these drawings are of women he killed in Atlanta, according to the FBI. On the left is a black woman he believes was between 35 and 40 years old when he killed her in 1981. Center: a white woman, possibly from Griffin, whom he says was 26 when he killed her in 1983 or 1984. Right: a black woman, possibly a college student, who was between 23 and 25 when Little says he killed her in 1984. (Credit: FBI)

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So far, authorities have matched 34 confessions to killings he claims to have committed, and they're asking for the public's help with others. Of the seven murders Little said he committed in Georgia, only one from Dade County and one from Bibb County have been confirmed, the FBI said. Authorities are working to confirm the three in Atlanta and two in Savannah.

“(Agents) say Little remembers his victims and the killings in great detail,” the FBI said in a news release. “He remembers where he was, and what car he was driving. He draws pictures of many of the women he killed. He is less reliable, however, when it comes to remembering dates. Little’s uncertain timeline has created a verification challenge.”

Samuel Little could be one of the most prolific serial killers in U.S. history. He confessed to murdering women from California to Florida between 1970 and 2005.

Bibb County Sheriff's Office

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Bibb County Sheriff's Office

In Atlanta, Little said he remembers killing three women between 1981 and 1984. He didn’t know their names or exactly where they were from, though in the case of the woman in 1984, he said he thought she was from Griffin.

“Little chose to kill marginalized and vulnerable women who were often involved in prostitution and addicted to drugs,” the FBI said. “Their bodies sometimes went unidentified and their deaths uninvestigated.”

The vast majority of the women were black.

The FBI said Little’s method of killing — punching and strangling — also didn’t always leave obvious signs that the death was a homicide, leading authorities to suspect the women died of drug overdoses, accidents or natural causes.

For more information or to report potential case links to Little, contact call 800-634-4097.