The cause of death of Yale University graduate student was on Wednesday announced by the chief state's medical examiner as traumatic asphyxiation.

Dr. Wayne Carver's office released the results three days after the body of 24-year-old Annie Le was found in a Yale medical school research building.

Le's body was found stuffed inside a basement wall.

Yale university lab technician, Raymond Clark, was released by police after DNA samples were taken and after being questioned in connection to the slaying of graduate student who worked in the same lab.

Clark III was taken into custody Tuesday night at his apartment in Middletown, Connecticut, and was released into the custody of his attorney about 3 a.m. Wednesday, New Haven police said, the Associated Press reported.

 According to Clark's attorney, David Dworski, Clark is committed to proceeding appropriately with the authorities, the AP reported.