The body of University of South Florida student Zamil Limon, 27, was recovered Friday from waters off the Howard Frankland Bridge, with his roommate Hisham Abugharbieh, 26, now facing upgraded charges including failure to report a death. As Hillsborough County authorities hunt for missing USF student Nahida Bristy, 27, both cases have been elevated to missing and endangered. The Tampa Bay community reels from the shocking developments near the bustling USF campus.