USF student murders: Clothing on newly found remains matches Nahida Bristy as prosecutors probe suspect’s ChatGPT use

Investigators say clothing on newly discovered remains matches what Nahida Bristy was last seen wearing, as prosecutors examine the role of OpenAI in the crime.

New court records are shedding light on the killings of two University of South Florida students, revealing similarities in how the victims were found and prompting a broader investigation into whether artificial intelligence played a role in the crimes.

Investigators are working to positively identify human remains discovered Sunday near the Howard Frankland Bridge — the same area where Zamil Limon’s body was previously found. According to court documents, the remains are believed to be those of Nahida Bristy.

Authorities say the body found Sunday was wearing clothing consistent with what Bristy was last seen in. Like Limon, the victim was found inside a trash bag, tied with a similar knot and stabbed multiple times.

At the same time, prosecutors are examining the suspect’s digital activity, including interactions with ChatGPT in the days leading up to and following the killings.

Court records show that on April 13, three days before the murders, the suspect asked, “What happens if a human has a put in a black garbage bag and thrown in a dumpster?” and questioned how authorities would find out.

After the killings, investigators say the suspect searched, “Are cars checked at the Hillsborough River State Park?” Later, on April 23, he also reportedly asked, “What does missing endangered adult mean?”

The developments come as state officials expand their investigation. Two statewide prosecutors have been appointed to examine whether artificial intelligence played a role in the case.

“This week I announced a criminal investigation into OpenAI over the murders of two USF students, with the primary suspect consulted ChatGPT before this tragedy took place,” Florida Attorney General James Uthmeier said in a social media post.

The Attorney General’s Office is working alongside local prosecutors to determine whether those interactions contributed to the killings and whether there could be broader legal responsibility for OpenAI, the developer of ChatGPT.

In a statement, State Attorney Suzy Lopez said, “This will let every big technology company know that when you create a product in the pursuit of profit, the full resources of Florida’s prosecutors will join together to protect public safety.”

OpenAI responded to the investigation in a statement, saying, “This is a terrible crime, and our thoughts are with everyone affected. We’re looking into these reports and will do whatever we can to support law enforcement in their investigation.”

🚨 URGENT SEARCH NEWS: Expanded Overnight Search for Missing USF Doctoral Student Nahida Bristy Covers Over Six Square Miles Around Campus — Investigators Recover Phone Belonging to Enrolled Student

Tampa Bay authorities have dramatically widened their search for 27-year-old Nahida Sultana Bristy, a doctoral student at the University of South Florida (USF), with overnight operations now covering more than six square miles in and around the university area. The intensified effort comes amid growing concern for Bristy, who has been missing since mid-April 2026 alongside fellow USF doctoral student Zamil Limon, whose remains were recovered earlier.

In a significant development, investigators confirmed they have recovered a phone belonging to a currently enrolled USF student during the expanded search. While officials have not yet publicly identified the exact owner of the device or confirmed its direct connection to Bristy, the discovery is being treated as potentially critical evidence in the ongoing investigation.

Background: The Disappearance of Two USF Doctoral Students

Nahida Bristy, 27, and Zamil Limon, also 27, were last seen on or near the USF Tampa campus on April 16, 2026. Bristy was captured on surveillance video leaving her office building that day. The pair were reported missing shortly afterward, prompting a large-scale search by the Hillsborough County Sheriff’s Office (HCSO) and other agencies.

Limon’s remains were discovered on April 24 near the Howard Frankland Bridge. His roommate, 26-year-old Hisham Saleh Abugharbieh, was arrested and charged with multiple counts, including first-degree premeditated murder in Limon’s death. Court documents have alleged connections between Abugharbieh and both missing students, with forensic evidence reportedly linking him to the case.

As the search for Bristy continued, human remains were recovered on April 26 in waterways south of the Howard Frankland Bridge in Pinellas County — in clothing matching descriptions of what Bristy was last seen wearing. Those remains have not yet been positively identified as Bristy’s, and authorities continue to treat her as a missing person while presuming the worst.

Suggested image placement: Aerial or illustrative map of the USF Tampa campus and surrounding Tampa Bay area, highlighting the expanded search zone (marked in red overlay for over six square miles), with icons indicating waterway search efforts near the Howard Frankland Bridge and key locations from April 16 onward.

The Expanded Search: Overnight Operations and New Evidence

HCSO officials stated that the search was expanded overnight, deploying additional personnel, boats, dive teams, and K-9 units across a broader area exceeding six square miles centered around the university and adjacent waterways. The focus includes dense campus-adjacent zones, parks, retention ponds, and sections of Tampa Bay where previous recoveries have occurred.

During these operations, search teams recovered a mobile phone belonging to a currently enrolled USF student. Investigators are now processing the device for forensic data, including location history, communications, and any digital evidence that might clarify Bristy’s movements or last contacts. The recovery adds urgency to the case, as digital breadcrumbs from student devices have proven pivotal in similar missing persons investigations involving university communities.

The exact circumstances of the phone’s discovery — whether found in water, on land, or in a vehicle — have not been fully detailed publicly, but its relevance to an enrolled student suggests it could belong to Bristy herself, Limon, or another individual connected to their social or academic circle.

Suggested image: Nighttime or dawn rendering of law enforcement search teams along Tampa Bay waterways or USF campus edges, with boats and personnel visible, conveying the scale and urgency of the overnight operation. Include a blurred/generic representation of a smartphone being handled in an evidence bag for sensitivity.

Investigative Developments and Suspect Connections

Hisham Abugharbieh faces serious charges tied to Limon’s death, and prosecutors are examining his digital activity, including alleged queries to AI tools about body disposal methods. Affidavits mention blood evidence linking Abugharbieh to items associated with both students.

The recovery of remains in clothing consistent with Bristy’s last known attire has heightened fears that she met a similar fate. However, until formal identification by the medical examiner, authorities continue active searching and public appeals for tips.

USF has issued statements supporting the affected families and offering counseling resources to the campus community. The disappearance of two doctoral students from the same university has sent shockwaves through academic circles, particularly among international and graduate student populations.

Community Impact and Calls for Information

The case has drawn widespread attention in Florida and beyond, with many expressing concern for Bristy’s family in Bangladesh and the tight-knit USF community. Officials continue to urge anyone with information about Bristy’s whereabouts after April 16, sightings of suspicious activity near campus, or details related to the recovered phone to contact the Hillsborough County Sheriff’s Office immediately.

The expanded search reflects law enforcement’s commitment to exhausting all possibilities in locating Bristy or additional evidence. Six square miles is a substantial area when including urban campus grounds, wooded sections, and aquatic environments, requiring coordinated multi-agency resources.

Suggested image: Respectful portrait-style illustration or public reference photo of Nahida Bristy (where available from official missing person flyers), paired with a photo of Zamil Limon if appropriate, to humanize the victims in this developing tragedy. Alternatively, a memorial candlelight or campus vigil scene if reports emerge.

What’s Next in the Investigation

Forensic analysis of the recovered phone, continued processing of the newly found remains, and expanded digital forensics on devices and surveillance from April 16 are expected to drive the next phase. If the remains recovered on April 26 are confirmed as Bristy’s, the case would shift toward full homicide prosecution against the suspect.

As of April 30, 2026, Nahida Bristy remains officially missing, and the search continues with renewed intensity. The discovery of a student’s phone adds a tangible new lead in what has become a complex and heartbreaking investigation involving two promising young scholars.

This evolving story underscores the vulnerabilities even in secure university environments and the critical role of rapid, technology-assisted searches in missing persons cases. The Hillsborough County Sheriff’s Office and partner agencies have appealed for public vigilance, emphasizing that any small detail could help bring resolution to the families.