NEW BRUNSWICK, New Jersey AP – Rutgers University student Tyler Clementi visited his roommate’s Twitter page 38 times in the last two days of his life, and was aware his roommate was attempting to spy on him, a computer expert testified Tuesday in a hate crime trial against the roommate.

Dharun Ravi, 21, faces 15 counts, including bias intimidation and invasion of privacy against Clementi, who jumped to his death from the George Washington Bridge on Sept. 22, 2010, one day after authorities say Ravi attempted to spy on him. The Clementi case was one of a string of suicides by young gays in the United States who were said to have endured bullying.