Samuel Little drew their portraits in paint and in pencil, filling out the contours of the faces of women he said he killed over nearly four decades.
He recalled the color of their eyes and the way they wore their hair, or locations crucial to their murder. One portrait simply says "tall girl by highway sign" in Cincinnati, "1984 or 74."
Little, 79, in failing health and already in California prison for three consecutive life sentences for each of three women he killed, has confessed to dozens of murders across the United States.
His details and confessions have so far proven true, prosecutors have said, leading authorities to a grim conclusion: With more than 60 killings now linked to him, Little may be the most prolific serial killer in American history.