Stay up to date with notifications from The Independent Notifications can be managed in browser preferences. All News Sport Culture Lifestyle Roommate arrested as body is found in search for missing USF students Hisham Abugharbieh, a former University of South Florida student, has been charged with two counts of first-degree murder in connection with the deaths of Zamil Limon and Nahida Bristy. Limon and Bristy, both 27-year-old doctoral students from Bangladesh, were reported missing after being last seen on 16 April. Limon's body was discovered Friday morning on the Howard Frankland Bridge, about 20 miles from his off-campus home. Bristy remains missing, but investigators believe she is also dead based on evidence found at the residence Abugharbieh shared with Limon. Abugharbieh, Limon's roommate, was arrested after barricading himself during a domestic violence call, with authorities yet to disclose a motive for the killings.…