Police chief tells AP motive for Yale graduate student’s killing may never be knownNEW HAVEN, Conn. — Without a confession from a Yale University technician charged with killing a graduate student and bride-to-be in the medical school lab where they worked, authorities may never know the motive, the police chief said. Report: DNA in ceiling, space where body was found links suspect to Yale killingNEW HAVEN, Connecticut — Police found DNA evidence implicating a lab technician in the death of a Yale graduate student in a ceiling and in the wall recess where her body was found, according to a newspaper report Friday. |