Yale student Annie Le's murderer has not been found nor police has arrested anyone as of Tuesday afternoon.

A laboratory technician who worked with animal testing at Yale is reportedly being investigated today since he failed lie detector tests and had scratches on his chest that suggest he was in a struggle, according to reports.

The lab technician reportedly had an unrequited love interest in Annie Le, the New Haven Independent reported citing a law enforcement source familiar with the probe. However the paper admitted it couldn't confirm that information independently.

Police has said they have interviewed 150 people in the case but do not expect to make an arrest Tuesday, the Associated Press reported. The results of Annie Le's autopsy are expected to be released later Tuesday.

Le's body was found stuffed in a wall in her lab on Sunday the date she was supposed to get married.