Roommate faces murder charges in deaths of 2 doctoral students

A 26-year-old antheral is facing 2 counts of first-degree execution successful the deaths of 2 University of South Florida doctoral students who went missing past week, section authorities said Saturday. 

The Hillsborough County Sheriff's Office successful Florida said that grounds presented to the authorities attorney's bureau resulted successful the charges against Hisham Abugharbieh, the roommate of Zamil Limon, 1 of the doctoral students. 

Abugharbieh was arrested connected Friday, the aforesaid time Limon was recovered dead. 

The household of Nahida Bristy, the different doctoral student, told CBS News that constabulary said she is besides apt dead. That is based connected the measurement of humor discovered astatine the Abugharbieh's residence, which helium shared with Limon.

"Police told america she is nary longer with us," Bristy's brother, Zahid Prato, said aboriginal Saturday.

The household was told her assemblage whitethorn ne'er beryllium recovered and constabulary judge she whitethorn person been dismembered, according to Prato. 

CBS News has reached retired to constabulary for much information.

Authorities said successful a connection Saturday they were inactive searching for Bristy.

Limon's remains were recovered connected the Howard Franklin Bridge successful Tampa Friday morning, Chief Deputy Joseph Maurer with the Hillsborough County Sheriff's Office said. His origin of decease was pending autopsy results.

Deputies with the sheriff's bureau took Abugharbieh into custody connected Friday aft responding to a home unit telephone astatine a location successful the Lake Forest Community, a vicinity adjacent USF's Tampa campus, officials said. He besides faces charges of home unit and grounds tampering, arsenic good arsenic a complaint of failing to study a decease to instrumentality enforcement.

Limon and Bristy, some 27, had past been seen successful the Tampa country connected April 16.

Meg Oliver contributed to this report.