Police: Many factors led to Yale arrest

NEW HAVEN, Conn., Sept. 18 (UPI) -- Several factors led New Haven, Conn., police to arrest Raymond Clark III in the death of a Yale University student, people familiar with the investigation said.

Security card swipe records indicating Clark was the last person to see Annie Le alive, his failed polygraph, scratches on his body, his attempts to clean up the crime scene and DNA match in two places were among the reasons police arrested and charged Clark, sources told the Hartford (Conn.) Courant in a story published Friday.

The body of Le, who was strangled, was found stuffed in a lab building's basement wall near the university hospital,

Clark, 24, was arrested on a charge of murder and arraigned Thursday. Bond was set at $3 million.

Le last was seen alive Sept. 8. Her body was found Sunday, the day she was to have been married.

One official familiar with the investigation said witnesses reported seeing Clark cleaning up areas where Le had been before she was reported missing.

Sources also said Clark sent Le a text message asking for a meeting to discuss the cleanliness of mouse cages in the lab on the morning she disappeared, ABC News reported.

Clark's job included cleaning the cages, and in his message he complained that Le had left cages dirty, ABC said. Clark had worked at the lab in New Haven since he graduated from high school in 2004.

At a news conference Thursday, New Haven Police Chief Joseph Lewis said there was no hint of romantic involvement or interest, but declined to offer a motive.

"It is important to note that this is not about urban crime, university crime, domestic crime, but an issue of workplace violence, which is becoming a growing concern around the country," Lewis said.