The FBI credits a new computer algorithm for identifying more than 200 previously unknown bodies found in locations throughout the country since the 1970s. The new system is able to make matches from low-quality prints or even a single finger or thumb. The cases range from a Texas man found in the mid-1980s in Iowa to an 18-year-old runaway who was found shot to death in 1999 in Arizona. Many of those identified died in the desert after crossing the border from Mexico into the U.S.
