Police have a suspect in the slaying of a Yale graduate student: another student—not necessarily enrolled at Yale—who bears defensive wounds and failed a polygraph test, MSNBC reports. An autopsy performed today confirmed that the body found yesterday is Annie Le's. Police have turned their focus to finding her assailant, the Hartford Courant reports. The bloody clothes found in the lab where Le was last seen are thought to belong to the killer, ABC News reports. (More Annie Le stories.)