Timeline of Annie Le's murder

New Haven, Conn (WTNH) - Raymond Clark's sentencing closes the book on a story that generated a great deal of attention, well beyond the Yale University campus.

In September of 2009, the disappearance of an attractive graduate student became big news on the Yale campus, in New Haven, and soon, across the country.

24-year old Annie Le, a third year Doctoral Candidate in Pharmacology from California was last seen on September 8th, a Tuesday, on surveillance video walking into a lab building on Amistad Street.

At first, there was speculation Le could be a runaway bride. She was supposed to get married that coming Sunday, but on that day, the day that would've been her Wedding Day, police and FBI agents found the young woman's body stuffed inside a laboratory wall.

"That this horrible tragedy happened at all is incomprehensible, but that it happened to her is infinitely more so," said Le's roommate, Natalie Powers.

The missing persons case became a murder case, and the investigation began to focus on one man, a lab technician who worked in the same building as Annie Le.

Raymond Clark III was first identified as "a person of interest", but quickly became the prime suspect. Police arrested him at a motel in Cromwell on Thursday morning September 17th.

Clark was in court, standing silently in front of a judge, before noon that day.

"This is not about urban crime. It's not about University crime. It's not about domestic crime, but an issue of workplace violence," said James Lewis, former New Haven Police Chief.

Clark was a lab tech. Co-workers reportedly labeled him 'a control freak' who was very territorial about the mice whose cages he cleaned, who were also the mice involved in Le's research.

We many never know the motive behind this murder. After an initial "not guilty' plea, Clark avoided a trial by reaching a plea deal with prosecutors, and pleading guilty to murder and attempted sexual assault charges on March 17th.

"Nothing that happens will ever bring Annie back to that family, but justice has been served," Joseph Tacopina, Attorney for Le's mother said.