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An arrest warrant application affidavit released Friday details the investigation and movements of Raymond Clark III, accused of murdering Yale graduate student Annie Le, during the days after she disappeared on Sept. 8. (November 13, 2009)


NEW HAVEN - A bloody sock found tucked behind a ceiling tile, and a green pen found inside a wall beneath Annie Le's body, contained DNA from both Le and her accused killer Raymond Clark III, an arrest warrant states.

Clark, a 24-year-old lab technician from Middletown, is accused of killing Le, a third-year doctoral student in pharmacology from Placerville, Calif.

Le's body was found Sept. 13 concealed behind a wall in the basement of the Yale Animal Research Center at 10 Amistad St., a research building that is part of the Yale School of Medicine complex where Clark worked and Le did research.

The discovery was made on the day that Le, 24, was scheduled to get married.

Le was reported missing on Sept. 8. Investigators combed through the basement of the Amistad Street building for days before finding Le's body.

Investigators found blood spatters and stains on evidence in a number of rooms in the basement, the affidavit states.

After a few days, investigators detected a foul odor inside a locker room, and officials brought in police dogs, which found "the lifeless body of a female ... concealed within a wall directly behind the toilet," the affidavit states.

Investigators found blood-like smears throughout the opening, behind the door frame, on pipe insulation and the access panel, the warrant states. Also, insulation was removed from the inside opening of the mechanical case concealing the body, the warrant states.

Le was wearing surgical gloves, and her left thumb was exposed. Inside the wall space, police found a green ink pen, a stained lab coat and a sock. The sock is similar to a bloody sock that was found behind a ceiling tile nearby, the warrant states. On the pen, investigators found a blood stain that contained Le's DNA, and they found Clark's DNA on the pen cap, the warrant states.

On Sept. 8, the affidavit states, Clark signed in to work using a green ink pen.

A stain on the sock found behind the ceiling tile "is a mixture of both Raymond Clark's DNA and the victim's DNA," the affidavit states.

While investigators interviewed Clark, they noticed a scratch on his face and left arm. Clark told police the injuries came from one of his cats.

Judge Roland D. Fasano last week ordered some portions of the court document released. The state medical examiner said that Le died of traumatic asphyxiation due to neck compression.

The arrest warrant affidavit does not offer a motive for the slaying but sources familiar with the investigation have told The Courant that the crime stemmed from a work dispute between Clark and Le.

Clark is being held, with bail set at $3 million, at the MacDougall-Walker Correctional Institution in Suffield. He is due back in court Dec. 21.