The Murder of Annie Le

Annie Le disappeared on September 8, 2009, 5 days before she was to marry her college sweetheart. She left her apartment that morning to head to the Yale campus where she was doing research as part of work towards a doctorate in Pharmacology, but when she never arrived home that night, her worried roommate called the police. Police conducted a search and were able to find Annie on the surveillance cameras walking into the research lab, but they couldn't find her anywhere on the cameras leaving the building, and she wasn't found inside the building. It was like Annie Le had simply vanished.

Sources:

Articles
CBS News | Annie Le's Fiance Mourns Yale Student's Murder (Ryan Smith)

The New York Times | Report on Yale Murder Outlines
Suspicions (James Barron and Alison Leigh Cowan)

The Hartford Courant | Affidavit Describes Evidence, Raymond
Clark's Movements (Alaine Griffin) 

Academic | The Murder of Annie Le 

The New Haven Independent | Annie Le Warrant: Bloody
Boots Read “Ray-C” (Melissa Bailey and Paul Bass)

The Trentonian | Yale Suspect Played Softball on Day Body
Was Found

ABC News | Annie Le's Person of Interest Had Scratches on
Chest, Arms, Back ( Sharyn Alfonsi, Lee Ferran and Russell Goldman)

The Hartford Courant | Records Show Raymond Clark III Was
Last To See Annie Le Alive, Source Says (Dave Altimari, Alaine Griffin, and
Josh Kovner)

Gawker | What We Know About Raymond J. Clark III
(Hamilton Nolan)

The Yale Alumni Magazine | The death of Annie Le (Carole
Bass)

Yale Daily News | Searching for Raymond Clark III (Everett Rosenfeld)

ABC Chicago | Yale Killing Suspect Plans to Plead Guilty

NY Daily News | DNA Shows Annie Le's Blood on Yale Lab
Tech Raymond Clark Boots; Green Pen clue Eyed: Investigators (Michael Daly)

 Videos
Investigation Discovery | See No Evil Season 6 - Episode 14: Cold Feet

YouTube | Friends of the University of New Haven Library:
Prof. Dadio - "Murder at Yale, the Annie Le Story"