A 26-year-old man has been charged with two counts of first-degree murder following the disappearance of two University of South Florida doctoral students. Local authorities announced the charges on Saturday after evidence was presented to the state attorney’s office.
Charges Filed Against Roommate
The suspect, Hisham Abugharbieh, was the roommate of Zamil Limon, one of the missing students. Abugharbieh is accused of premeditated murder involving the use of a weapon.
He was taken into custody on Friday after deputies responded to a domestic violence call. The incident took place at a residence in the Lake Forest Community, a neighborhood located near the Tampa campus of USF.
In addition to the murder charges, Abugharbieh faces charges of domestic violence, evidence tampering, and failing to report a death to law enforcement.
Status of the Victims
The remains of Zamil Limon were discovered Friday morning on the Howard Franklin Bridge in Tampa. According to Chief Deputy Joseph Maurer of the Hillsborough County Sheriff’s Office, the cause of death is currently pending autopsy results.
Authorities stated on Saturday that they are still searching for the second student, Nahida Bristy. However, her family reports that police believe she is likely dead based on the volume of blood discovered at the residence Abugharbieh shared with Limon.
Zahid Prato, the brother of Bristy, stated that the family was informed her body may never be found and that police believe she may have been dismembered.
Academic Loss and Community Impact
The victims were both high-achieving doctoral students. Zamil Limon was studying the use of AI in environmental science and was scheduled to present his doctoral thesis this week.
Nahida Bristy was pursuing her doctoral studies in chemical engineering. The loss of two researchers at this stage of their academic careers represents a significant blow to their respective fields of study.
Looking Ahead
Legal proceedings against Abugharbieh are expected to move forward as the state processes the evidence. A possible next step in the investigation will be the release of autopsy results to confirm the cause of Limon’s death.

Search efforts for Bristy may continue, whereas the nature of the evidence at the scene suggests that recovery of her remains could be difficult.
Frequently Asked Questions
Who is the suspect in the deaths of the USF students?
The suspect is 26-year-old Hisham Abugharbieh, who was the roommate of Zamil Limon.
Where was Zamil Limon’s body found?
His remains were found on the Howard Franklin Bridge in Tampa on Friday morning.
What is the current status of Nahida Bristy?
Authorities are still searching for her, but her family has been told by police that she is likely dead due to the amount of blood found at the suspect’s residence.
What measures can universities take to better support the safety and security of their graduate student communities?
