The story

Slain Yale University graduate student Annie Le was intelligent, driven and destined for greatness, said those who knew her.

"She was also really tenacious and had a sense of humor that was never far away, and she was tougher than you'd think by just looking at her," Le's roommate, Natalie Powers, told a crowd of hundreds gathered on campus for the slain 24-year-old's vigil Monday.

Le's body was found inside a wall at a Yale medical school building Sunday, the day she was to be married to her college sweetheart, Jonathan Widawsky, a graduate student at New York's Columbia University. She disappeared five days before her wedding. Watch timeline leading up to Le's death Read full article »

CNN's Eliott C. McLaughlin, Mary Snow, Susan Candiotti, Katie Ross and LaNeice Collins contributed to this report.

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