Riley Couger was a college student and a suspect in the rape and murder of Jeanne Gallagher.
Couger did indeed rape Jeanne two months before she died, and the university made her sweep it under the rug. However, Jeanne's death was accidental and unrelated to the assault.
Couger was still charged with rape, and he was found guilty and imprisoned. (SVU: "Sophomore Jinx")