The body of Zamil Limon was found on the Howard Frankland Bridge on Friday morning, and his roommate Hisham Abugharbieh was taken into custody after a standoff at his family’s home in the Lake Forest subdivision, just north of the University of South Florida campus.
Limon, a 27-year-old doctoral student in geography, environmental science and policy, had not been seen since April 16, when he was last spotted at his Tampa residence around 9 a.m. His roommate, Abugharbieh, was interviewed by detectives on Thursday in connection with the disappearances of both Limon and fellow doctoral student Nahida Bristy, who was last seen on campus the same morning at 10 a.m. In the Natural and Environmental Sciences Building.
When deputies responded to a domestic violence call at the Lake Forest home around 9 a.m. Friday, they found family members inside who were able to leave safely. Abugharbieh refused to exit, prompting a SWAT response after approximately 20 minutes of negotiation. He eventually surrendered peacefully and was taken into custody.
Abugharbieh faces multiple felony charges, including domestic violence, simple battery, false imprisonment, tampering with evidence, failure to report a death, and unlawfully moving or concealing a human body. According to jail records, he has prior arrests for battery and burglary.
Investigators say they believe Abugharbieh acted alone. Limon’s body was recovered from the bridge, and an autopsy is underway to determine cause and manner of death. Bristy, a 27-year-old chemical engineering doctoral student from Bangladesh, remains missing. Her family said it is out of character for her to go silent, noting she maintained regular contact with loved ones back home.
Zahaid Hasan Pranto, Bristy’s older brother, told NBC News that she and Limon had previously been in a romantic relationship but were not actively dating at the time of their disappearance. Friends and family described both students as academically focused and socially connected, making their sudden absence deeply troubling.
The Lake Forest subdivision where the standoff occurred is not where Limon and Abugharbieh lived; authorities confirmed the home belongs to Abugharbieh’s family. Bristy resided on campus, and her last known location was the NES Building on April 16.
A family friend’s inability to reach either student just before 5 p.m. On April 17 prompted the initial missing person reports, which led to police entering both names into official databases and launching a coordinated search.
How the timeline connects the last sightings to the discovery
Limon was last seen at his home on Avalon Heights Boulevard at 9 a.m. On April 16. Bristy was last seen on campus an hour later. Neither was heard from after that point. The body was found five days later on the Howard Frankland Bridge, a major commuter route connecting Tampa and St. Petersburg, suggesting the remains may have been moved or disposed of shortly after the time of death.
Why the domestic violence call triggered the breakthrough
Law enforcement had already interviewed Abugharbieh on Thursday as part of the missing persons investigation. The domestic violence call on Friday morning provided the immediate cause for deputies to respond to the Lake Forest residence, where they encountered resistance and ultimately made the arrest. Without that call, the timeline of his apprehension might have been delayed.
What remains unknown in the investigation
The motive behind Limon’s killing is still unclear. Investigators have not publicly linked the charges to a specific narrative — such as jealousy, financial dispute, or prior conflict — though the domestic violence charges suggest interpersonal tension. Bristy’s whereabouts continue to be actively pursued, with no confirmed sightings since April 16.
Is there any indication that Nahida Bristy was harmed?
No evidence has been released suggesting Bristy was harmed, and officials have not named her as a victim in any charges against Abugharbieh. The investigation into her disappearance remains active and separate from the homicide inquiry into Limon’s death.
Could the charges against the suspect change?
Yes. Prosecutors may review the autopsy results and additional evidence to determine whether to upgrade charges, potentially including murder or manslaughter, depending on the cause and circumstances of Limon’s death.
Why was the suspect not arrested earlier?
Although Abugharbieh was interviewed on Thursday, authorities did not have sufficient probable cause for arrest at that time. The domestic violence incident on Friday provided the immediate legal basis for detention and led to the discovery of information that supported the additional charges related to Limon’s death.
What role did USF police play in the investigation?
USF Police Department processed the initial missing person reports for both students after being contacted by a family friend on April 17. They shared information with the Hillsborough County Sheriff’s Office, which assumed lead investigative responsibility as the case evolved beyond the campus.
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