[cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2009/CRIME/09/17/raymond.clark.profile/art.clark.booking.jpg caption="Raymond Clark III was arrested Thursday and charged with murder in the death of Annie Le."]
Raymond J. Clark III, charged with murder in the death of Yale graduate student Annie Le, was smart, amiable and loved his dog, say those who knew him.
One researcher said he often went by the lab in the Yale School of Medicine building where Le was found strangled and stuffed in a wall. Lufeng Zhang worked with Clark, he said, and thinks the police may have the wrong man.
"He's a nice man, always," he said.
Clark, 24, the same age as Le, was a technician in the school of medicine's Animal Resources Center. While Le, who was pursuing a doctorate in pharmacology, conducted experiments on mice, Clark took care of the rodents and cleaned their cages.
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