Lab Tech's DNA Matched Evidence In Annie Le Slaying, Source Says Raymond Clark III, whose DNA matched evidence at the Yale crime scene, tried to cover his tracks, a source says. By Alaine Griffin, Dave Altimari and David Owens September 18, 2009 Reporting from New Haven, Conn. - As FBI agents and Yale University police combed the basement of a laboratory building for missing bride-to-be Annie Le, the man accused of killing her moved among them in an apparent effort to cover his tracks, a law enforcement official familiar with the investigation said. That behavior aroused suspicions about Raymond Clark...