NEW HAVEN, Conn. -- An animal research technician charged with killing a Yale graduate student raised suspicions when he began scrubbing floors after the crime and tried to move a box of bloody wipes from the view of an investigator, according to an arrest warrant released Friday.
The body of 24-year-old Annie Le was found stuffed behind a Yale
research lab wall in September. An autopsy determined she was
Clark III, on its cap.
Police have said Clark signed into the
secure building with a green pen on Sept. 8, the day Le
The warrant says DNA from both Le and Clark was on a bloody sock
found hidden in a ceiling.
The document also says Clark moved a box of wipes to hide blood
spatters on it. Clark had a scratch on his face and left biceps
that he said came from a cat, according to the affidavit.
Joe Lopez, Clark's public defender, declined to comment Friday.
Clark, 24, is charged with murder. Le vanished Sept. 8 from the
Yale medical school research building where she and Clark worked,
and her body was found five days later, on what was to be her
wedding day. She was wearing surgical gloves with her left thumb
exposed, according to the affidavit.
Clark has not yet entered a plea, but his attorney has said he
will plead not guilty.
Clark said he knew Le for at least four months and did not
socialize with her. He told police Le left the building 15 minutes
before him carrying her notebook and two bags of mouse food.
The warrant, which does not offer a motive, describes a bloody
crime scene and Clark's efforts to scrub floors.
Two days after Le disappeared, a graduate student showed a Yale
police officer a box of "wipe alls" on a cart in a lab that had
what appeared to be blood splattered on it. The officer watched
Clark move the box of wipes and turn the box so that the bloody
spots were not visible, authorities said.
"Once Clark moved the box of wipes, he then leaned up against
the cart and made small talk" with the officer, the affidavit
The blood spatter on the wipes matched the victim's DNA,
Clark later came back into the room and began scrubbing the
floor with SOS pads and cleaning solution even though the floor
appeared to be clean, according to the affidavit. He was also
spotted "on the floor" inside Le's lab scrubbing the floor under
a sink with a brush or cleansing pad, according to the affidavit.
Investigators uncovered "a possible medium velocity blood-like
spray pattern" on the wall that tested positive for blood and
apparent efforts to clean the blood off the wall.
The blood at the scene suggests there was a struggle, experts
said, noting Clark's scratches and the possible damage to Le's
"I think there is a big likelihood of a struggle," said
forensic pathologist Michael Baden, who has been an expert witness
in cases involving John Belushi and O.J. Simpson.
A victim can also cough up blood when being strangled, Baden
said. Some of the blood could also be from the body being stuffed
in the wall and deteriorating.
Authorities said Clark changed his clothes at least once when
the FBI was processing the scene, citing video surveillance of the
Authorities said they also found in the building a pair of work
boots labeled "Ray-C" that had blood-like stains on them, and a
hospital scrub shirt with blood-like stains that was similar to the
shirt Clark wore.
Le entered her lab, known as G13, at 10:11 a.m. Sept. 8. Clark's
card shows he accessed the victim's lab at about 10:40 a.m. and
again at 11:04 a.m. and no other locations for 46 minutes.
Clark's key card was the only one used to access a room where
blood was found after Le entered the building, according to the
"Clark's movements after this entry are considered
uncharacteristic for his normal movements throughout his work
day," the affidavit states.
He used his key card to gain entry into the room where Le worked
and another room 55 times from 10:40 a.m. to 3:45 p.m. the day Le
disappeared, according to the affidavit.
A judge last week ordered portions of the court documents to be