Raymond Clark III was supposed to be sentenced on Friday in the murder of Yale graduate student Annie Le, but his sentencing date has been moved to June 3.
Clark pleaded guilty to murder and attempted sexual assault under an agreement that calls for a 44-year-sentence.
His plea on the attempted sexual assault charge was under Connecticut's Alford doctrine, in which the defendant in a criminal case agrees only that the state has enough evidence against him or her to get a conviction.
Le, a 24-year-old Placerville, California, vanished on Sept. 8, 2009, from the Yale Medical School research building where she and Clark worked.
Le's body was found on Sept. 13, the Sunday she was to marry Jonathan Widawsky, a Columbia University student., Her body was upside down stuffed behind a research lab wall.
Clark, was responsible for caring for lab mice and cleaning floors and cages, had strangled her.
Prosecutor David Strollo said Le had a broken collar bone and jaw, injuries suffered while she was alive, and that her underwear had been disarranged. He noted that the victim was 4 feet nine inches and 89 pounds, while Clark was 5 feet 9 inches and 190 pounds.
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Clark had been charged with murder and felony murder, each carrying a possible sentence of 25 to 60 years.
