A redhead with vivid emerald green eyes and downturned lips; a young woman with strong eyebrows and cherry-red earrings; a teenager with a blue hairband possibly named “Mary Ann.” These are among the haunting portraits hand-drawn by confessed serial killer Samuel Little of his alleged victims — many of whom authorities say remain largely unidentified. The FBI released 16 of Little’s portraits, all of which were drawn from memory, on Tuesday. The bureau told CNN they hoped “someone — family member, former neighbor, friend — might recognize the [victims] and provide the crucial clue in helping authorities make an identification.” Little’s drawings, the agency added, have “proven quite accurate.”

FBI

Little, 78, stunned investigators last year when he began confessing to almost 100 killings, carried out over the span of about 35 years. He’d already been behind bars at the time, serving three life sentences for the murders of three Los Angeles women. But starting last May, Little shared story upon story of the dozens of other vulnerable women — many of whom were involved in prostitution and addicted to drugs — who he claimed to have strangled to death, leaving a trail of bodies across the country. In all, Little has confessed to murdering more than 90 people. Police said they’ve confirmed more than 36 of these cases so far, the Los Angeles Times reported. The grim tally makes Little one of the most prolific serial killers in American history.

ASSOCIATED PRESS This undated photo provided by the Ector County Texas Sheriff's Office shows confessed serial killer Samuel Little.