The University of South Florida community is coming together to honor the lives of two students, Zamil Limon and Nahida Bristy, with a series of tributes and memorial events.

From 4-7 p.m. Friday, a vigil will be held at Crescent Hill, just north of the student center, where students, faculty and community members are expected to gather in remembrance. The university has already observed moments of silence at recent baseball and softball games, reflecting the widespread impact of the loss.

Further tributes are planned in the coming days. During next week’s graduation ceremonies, both students will be formally remembered, and their names will be added to the campus memorial dedicated to students who have died.

The two USF doctoral students were last seen on April 16. Limon’s remains were discovered early on April 24, near the Howard Frankland Bridge. Officials said more remains were found near the Howard Frankland Bridge off Fourth Street on April 26, but those remains have not been officially identified.

Hisham Abugharbieh, 26, faces two charges of first-degree murder, among other charges, in connection with the case.

Meanwhile, as authorities continue working to officially identify the second set of remains, family and friends of Limon gathered Thursday at the Islamic Center of Tampa Bay for a prayer service. Limon was honored with full Islamic funeral rites in a ceremony marked by grief and remembrance.

Following the service, his aunt, Taslima Islam, started the journey to return his remains to Bangladesh. Speaking through tears, she described her nephew as someone who was always smiling and deeply loved by those around him.

“It’s really a bad day for us. We don’t know how to accept it — we cannot accept it. Never,” she said. “We are always missing him. Everywhere we look, we see his face. We can’t see him anymore.”

Both 27 years old, Limon and Bristy’s deaths have left a profound mark on the university community, as classmates and loved ones continue to grieve while honoring their memories.

The investigative focus regarding the tragic loss of University of South Florida doctoral students Zamil Limon and Nahida Bristy has undergone a fundamental shift following the discovery of Nahida Bristy’s remains and the subsequent extraction of critical digital data. While initial efforts centered on physical searches and witness accounts, detectives now confirm that the recovery of new evidence has pivoted the investigation toward a sophisticated digital trail. Forensic analysts have reportedly identified a repeating two-digit code embedded within recovered data from the victims’ devices. This specific numerical sequence, which appears with haunting frequency, has also been located within files linked directly to the suspect, Hisham Saleh Abugharbieh. This discovery suggests a level of digital premeditation or a shared encrypted connection that the authorities are now working to decode.

The presence of this repeating two-digit code has given rise to several complex hypothetical scenarios. One prevailing theory among investigators is that the code may have served as a rudimentary signal or a “trigger” used to bypass security protocols or to signal specific actions between devices. If this code was utilized to track the victims or to disable location services on their phones, it would provide undeniable proof of a calculated and technical approach to the crime. The fact that the same sequence was found in Abugharbieh’s personal files creates a digital fingerprint that transcends physical proximity, potentially linking him to the planning stages of the abduction long before the first message was sent.

Another darker hypothesis being explored is the possibility that the two-digit code was part of a larger, more intricate obsession. Given the academic background of all individuals involved, investigators are looking into whether the code relates to chemical formulas, mathematical constants, or specific research data that may have been a point of contention between the roommates. If the code was used to label or “tag” certain files or events, it could reveal the motive behind the violence. This technical breakthrough has shifted the investigation from the streets of Tampa into the realm of digital forensics, where every bit and byte is being scrutinized to understand the logic behind the tragedy.

The realization that a simple two-digit code could hold the key to the case has sent shockwaves through the USF community. It portrays a crime that was not just a burst of sudden anger, but one that may have had a lingering, coded shadow. As specialists work to determine if this sequence was part of an encrypted communication channel or a marker for a digital “kill switch,” the families of Zamil and Nahida are left to grapple with the idea that their loved ones were caught in a web that was as much virtual as it was physical. The investigation continues to evolve, with this new digital evidence serving as a bridge between the victims’ academic brilliance and the calculated nature of their end.