The FBI on Tuesday released 16 of 78-year-old Samuel Little's portraits featuring eerie details like the women's hairstyle, eye color and shade of lipstick. The strategy worked - both were identified.
So far investigators have managed to link Little to 36 of his claims, spanning the width of the United States, from LA to Washington DC.
ASSOCIATED PRESS This undated photo provided by the Ector County Texas Sheriff's Office shows confessed serial killer Samuel Little. Palazzolo and Angela Williamson, a Justice Department senior policy advisor and ViCAP liaison, who both spoke to Little, said that he remembered great detail from the killings.
Little has confessed to killing 93 people over more than three decades, starting in 1970.
Little, also known as Samuel McDowell, was already in prison last spring when his name came up in the FBI's Violent Criminal Apprehension Program, known as ViCAP, in connection with a series of unsolved murders across the country.
Little is serving a life sentence in Texas after pleading guilty in December in Odessa to the 1994 strangulation of Denise Christie Brothers, whose body was found about a month after she disappeared.
So, Texas Ranger James Holland along with two Federal Bureau of Investigation crime analysts traveled to California where Little was being held for beating and strangling three women and dumping their bodies in an alley, dumpster and a garage, according to the Federal Bureau of Investigation.
"Over the course of that interview in May he went through city and state and gave Ranger Holland the number of people he killed in each place".
In the other three cases - one from Prince George's County, Maryland, another from West Memphis, Arkansas, and the third from Pascagoula, Mississippi - police have matched one of Little's confessions to skeletal remains and corresponding case files.
The victims are all captured in the final moments of their lives and most exhibit forlorn or petrified expressions, staring directly into the killer-come-artist's eyes. Investigators have confirmed 34 of the confessed killings, authorities said in November.
Little is said to be in poor health and investigators are conducting daily interviews to extract as much information from him as possible.
Little was caught after being arrested on a drugs charge in a homeless shelter in Kentucky, and extradited to California in 2012.
Historic DNA evidence resulted in him sentenced for the murders of three women in 2014, but by November past year Little told authorities he'd actually killed almost 100 more women.