by Chris Lefkow Agence France Presse WASHINGTON, United States (AFP) — The FBI has released 16 chilling portraits drawn by a man who may be the most prolific serial killer in US history in an attempt to identify some of his victims. Samuel Little, a 78-year-old drifter, has confessed to 90 murders committed between 1970 and 2005 and law enforcement authorities have corroborated more than 40 of them so far. Little, a 6ft 3in (1.9m) […]