A former student at the school stands accused of murdering his roommate and roommate's girlfriend after the couple vanished earlier this month. TAMPA, Fla. (AP) — A former University of South Florida student has been charged with killing his roommate and the roommate’s girlfriend — two doctoral students from Bangladesh who disappeared earlier this month, authorities said Saturday. Hisham Abugharbieh, 26, is facing two counts of premeditated murder in the first degree with a weapon in the deaths