.Odessa (WBAP/KLIF) – A Texas prosecutor says investigators have linked more than 60 killings in at least 14 states to a now 79 year old prison inmate who may be the most prolific serial killer in U.S. history. Ector County’s District Attorney says Samuel Little continues to cooperate with investigators from around the country who are interrogating him in prison about cold case killings dating back to the 1970s. Little is serving multiple life sentences in California, and claims he killed 93 women.