Traumatic asphyxiation

NEW HAVEN, Conn. - Police say they have served two more search warrants on a Yale University lab technician called a "person of interest" in the killing of a graduate student whose body was found stuffed behind the wall of a campus research building.

CROMWELL, Conn. - A Yale graduate student found stuffed in the wall of a research center had been suffocated, the medical examiner reported Wednesday as police awaited DNA tests on evidence taken from a lab technician who worked in the building.

NEW HAVEN, Conn. - A Yale graduate student found stuffed in the wall of a research center had been suffocated, the medical examiner reported Wednesday as police awaited DNA tests on evidence taken from a lab technician who worked in the building.