US prosecutors have pressed charges against Hisham Abugharbieh over the killing of his Bangladeshi roommate and PhD student, Zamil Limon, in Florida, reports CNN.

Hisham Abugharbieh, who was arrested Friday, has been charged with a second count of murder for killing another Bangladeshi PhD student Nahida Bristy, who was also expected to be Limon’s wife.

The two victims, both 27 year olds, were studying at University of South Florida and had remained missing since last week. While the police found Limon’s body on Friday, Bristy remains missing and is presumed dead.

The search for her body continues.

Hillsborough County Sheriff’s Office Marine and Dive teams were seen searching the water near the Howard Frankland Bridge for Bristy on Friday.

Investigators have called Bristy’s family in Bangladesh saying they believed she may be dead, based on the amount of blood found in Limon and the suspect’s shared apartment, Bristy’s brother told CNN affiliate WTSP. CNN has reached out to her brother and the sheriff’s office for details.

A medical examiner is still determining Limon’s cause of death and may share autopsy results over the weekend, Chief Deputy Joseph Maurer with the Hillsborough County Sheriff’s Office said.

“This is a deeply disturbing case that has shaken our community and impacted many who were hoping for a safe resolution,” Sheriff Chad Chronister said in a statement on Friday.

Abugharbieh was arrested Friday morning after law enforcement was called to his home for a reported domestic violence incident, according to Maurer.

In addition to the murder charges, Abugharbieh, a 26-year-old former USF student, is facing charges of unlawfully moving a dead body, failure to report a death with intent to conceal, tampering with physical evidence, false imprisonment and battery, the sheriff’s office had said.

“Evidence was presented to the State Attorney’s Office against Hisham Abugharbieh, resulting in further charges against the suspect,” the Hillsborough County Sheriff’s Office said.

Limon was last seen on April 16 around 9am Florida time at his off-campus home, about three blocks from the university’s campus, police said. He had been pursuing a degree in geography, environmental science and policy since the fall of 2024.

Bristy was last seen about an hour later at the Natural and Environmental Sciences Building on campus, police said. She enrolled at the university last fall and was studying chemical engineering.

The following day, a family friend was unable to reach the pair and notified campus police.

Limon’s family told CNN they had become desperate for answers about what happened to the joyful, promising young researcher.

As the investigation and search for Bristy continues, Moez Limayem, the university’s president, said his staff will remain in contact with the students’ loved ones to provide support.

“Please join me in praying for the families and friends of Zamil, and for the safe return of Nahida,” Limayem said in a message to faculty and students.