India, April 25 -- A man named Hisham Saleh Abugharbieh is facing charges after his roommate, Zamil Limon, a University of South Florida doctoral student, was found dead after being reported missing. Hillsborough County Sheriff's Office has shared a video of the moment Abugharbieh was arrested.

Another student, Nahida S. Bristy, also went missing along with Limon. The 27-year-olds from Bangladesh were last seen about a week ago.

Limon's body was found Friday morning on the Howard Frankland Bridge in Tampa, Florida. While there has been no official confirmation about Bristy's whereabouts, her brother, Zahid Hasan Pranto, said in a Facebook post, "My sister is no longer with us".

Pranto told NBC News the two students had a romantic relat...