🚨 LATEST UPDATE Authorities confirmed the remains discovered on the Howard Frankland Bridge belong to 27-year-old doctoral student Zamil Limon. Investigators say the discovery came while they were already examining the timeline of his disappearance — and that breakthrough rapidly accelerated the case against his roommate.

On the morning of Friday, April 24, 2026, human remains were located on the iconic Howard Frankland Bridge spanning Tampa Bay. Within hours, the Hillsborough County Sheriff’s Office (HCSO) positively identified them as those of Zamil Ahamed Limon, a 27-year-old Bangladeshi national pursuing a doctorate in geography, environmental science, and policy at the University of South Florida (USF).

upload.wikimedia.org

Chief Deputy Joseph Maurer announced the identification at a press conference, noting that detectives had already been deeply immersed in reconstructing the timeline of Limon’s disappearance since April 16. The bridge discovery — made while investigators pursued separate leads in the area — provided a critical link that helped propel the case forward, leading to the swift arrest and escalating charges against Limon’s roommate, 26-year-old Hisham Saleh Abugharbieh (also spelled Abugharbeih).

tampabay.com

Limon had been missing for more than a week alongside 27-year-old Nahida Bristy, another USF doctoral student in chemical engineering. Both were from Bangladesh and maintained close daily contact with families back home. Their sudden silence triggered missing person reports on April 17.

The Timeline Under Scrutiny

Investigators were already piecing together the final hours of both students when the remains were found. Limon was last seen around 9:00 a.m. on April 16 at the off-campus apartment on Avalon Heights Boulevard that he shared with Abugharbieh. Phone records showed his device ringing three times that morning before abruptly going straight to voicemail — a stark departure from his reputation for never ignoring calls from loved ones.

Roughly an hour later, Bristy was sighted near the Natural & Environmental Sciences (NES) Building on the USF Tampa campus, reportedly carrying her backpack. She left personal items — including her laptop, iPad, and lunchbox — in a lab, indicating she expected to return. Both phones soon went offline, complicating early location efforts.

As HCSO detectives examined witness statements, digital forensics, cell tower data, and surveillance, the timeline inconsistencies (including details around the NES sighting) gained significance. The bridge discovery occurred amid this active timeline review, providing physical evidence that strengthened connections to the shared apartment and the suspect.

upload.wikimedia.org

An autopsy was underway to determine the exact cause and manner of Limon’s death, with results expected to offer further clarity.

The Arrest and Escalating Charges

That same Friday morning, deputies responded to an apparently unrelated domestic violence call at a residence in the Lake Forest community in North Tampa. Family members were safely removed, but Abugharbieh barricaded himself inside and refused to exit for nearly 20 minutes. SWAT arrived around 10:36 a.m.; he eventually surrendered, reportedly stepping out wearing only a towel.

Prior to the standoff, Abugharbieh — a former USF student — had been interviewed at least twice as a person of interest in the disappearances. He reportedly stopped cooperating in one session. Evidence gathered during and after his arrest, combined with the bridge discovery, allowed detectives to link him directly to Limon’s remains.

Initial charges included unlawfully holding or moving a dead human body, failure to report a death with intent to conceal, tampering with physical evidence, false imprisonment, battery, and domestic violence-related offenses. By April 25, these were upgraded to two counts of first-degree premeditated murder with a weapon in the deaths of both Limon and Bristy. Authorities stated they believe Abugharbieh acted alone. He is being held without bond at the Falkenburg Road Jail.

static.toiimg.com

Search for Nahida Bristy Continues

While Limon’s remains were recovered on or near the bridge, Nahida Bristy remains missing. HCSO marine and dive teams immediately expanded underwater searches in Tampa Bay near the Howard Frankland Bridge. Officials continue to urge anyone with information to come forward.

Bristy was described as warm and ambitious, often seen smiling in family photos shared during the search. Like Limon, she was deeply connected to her family in Bangladesh, making the prolonged silence especially alarming. Some reports suggested she and Limon were close, possibly in a relationship.

The case has sent ripples through the USF community, the local Bangladeshi diaspora, and international student networks. USF has offered counseling and support, while emphasizing cooperation with law enforcement. Off-campus housing dynamics and campus safety have drawn renewed attention.

A Tragedy of Unanswered Calls and Broken Timelines

Zamil Limon and Nahida Bristy embodied the promise of international graduate education at a major research university. Limon’s work reportedly explored AI applications in environmental challenges; Bristy focused on chemical engineering. Their families recalled affectionate final conversations — including one tied to Pahela Baishakh celebrations — that now carry added weight.

The discovery on the Howard Frankland Bridge, a vital daily artery for Tampa Bay commuters, transformed a missing persons inquiry into a double-murder investigation. The fact that it aligned with an ongoing timeline examination underscores how digital traces, witness accounts, and physical evidence can converge rapidly in modern probes.

Abugharbieh’s prior legal history, including battery-related incidents resolved in part through diversion programs, has been noted in reporting but has not been officially cited as a motive. Investigators have cautioned against speculation as forensic work, interviews, and searches proceed.

As of April 26, the search for Bristy persists. Dive operations and other leads remain active. Anyone with tips is asked to contact the Hillsborough County Sheriff’s Office at (813) 247-8200 or USF Police.

This developing case — marked by the bridge discovery amid timeline scrutiny, a dramatic domestic standoff, and swift murder charges — continues to unfold. For the families separated by oceans, the grief is profound, and the quest for answers and justice remains urgent.

The Howard Frankland Bridge now stands as more than infrastructure; it has become a somber focal point in a story of ambition interrupted, connections severed, and a community seeking closure.

This article is compiled from official HCSO statements, press conferences, and reporting by outlets including ABC, FOX 13 Tampa Bay, NBC, and others. Details such as full autopsy results, complete phone forensics, and any potential motive remain under active investigation and are subject to update. Charges are allegations; the suspect is presumed innocent until proven guilty in court.