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'Person of interest' found in Yale killing
Source: Police may have lead in grad student's death

NEW HAVEN, Conn. - Police have identified a 'person of interest' in the killing of a Yale University graduate student whose body was hidden for days in a wall in a university research building, a Connecticut state official said Tuesday.

The official has firsthand knowledge of the police investigation into the death of 24-year-old Annie Le and would not elaborate on what was meant by 'person of interest.' The official spoke on condition of anonymity because the investigation is continuing.

A spokesman for New Haven police, who have been extraordinarily tight-lipped during the investigation, did not immediately return a call seeking comment.

Police said earlier Tuesday that they had questioned 150 people in connection with the death of Le, who vanished Sept. 8 from a Yale research building. Her body was found Sunday, on what would have been her wedding day, stuffed behind a wall in a basement laboratory. They said they did not expect to make an arrest Tuesday.

State prosecutors also blocked the release of autopsy results in Le's death on Tuesday. The chief state medical examiner's office ruled the death a homicide Monday but have yet to say the manner in which Le died.

State's Attorney Michael Dearington did not return a call seeking comment on why his office requested that the autopsy results be delayed.

Authorities were keeping watch on some of Le's co-workers and have descended in large numbers this week on the home of a Yale animal research technician who lives in the Wharfside Commons apartment complex in Middletown.

An official parked outside complex, about 20 miles away near Hartford, wouldn't confirm whether police were there to investigate the Le killing, but public records show the technician lives in a first-floor apartment. A man answering the door Tuesday said the technician wasn't at home and closed the door.

Neighbors said authorities in unmarked cars arrived Monday afternoon and frequently follow and pull over drivers in the complex. New Haven police would not comment on the efforts there.

Police are analyzing what they call 'a large amount' of physical evidence but have not gone into detail.

At a meeting of medical school students and teachers Monday, Yale president Richard Levin said police have narrowed the number of potential suspects to a very small pool because building security systems recorded who entered the building and what times they entered, the Yale Daily News reported Tuesday. The appropriate people are being monitored, he said.

Yale spokesman Tom Conroy said he couldn't confirm the report.

The killing took place in a heavily secured building accessible only to students and university employees. It was the first killing at Yale in a decade.