The next step in the case would be arraignment, which is set for 9 a.m. on May 18.

TAMPA, Fla. — A grand jury handed down the indictment Thursday for the man accused of killing two University of South Florida (USF) doctoral students.

Court records show Hisham Abugharbieh is now facing multiple charges, including: 

Two counts of first-degree murder with a weapon (premeditated) — capital felonyTwo counts of unlawfully holding or moving a dead human body in unapproved conditions — third-degree felonyTwo counts of failure to report death to medical examiner or law enforcement with intent to conceal — third-degree felonyTampering with physical evidence relating to a capital felony — second-degree felony

Zamil Limon and Nahida S. Bristy, both 27 years old, went missing on April 16. 

Authorities say Zamil’s body was discovered in “heavy-duty utility trash bags” on the Howard Frankland Bridge on April 24. Nahida’s body was discovered in the water near the bridge just two days later.

Hillsborough County Sheriff Chad Chronister provided “gruesome” details about the premeditated double murder investigation last week, including what evidence was found in Abugharbieh’s apartment and how investigators used it to find the students’ bodies. 

Thursday’s indictment reiterates that Abugharbieh killed both students with a premeditated design by “inflicting blunt force injuries and stabbing, slicing and cutting” them. It also alleges he carried, displayed, used, threatened to use or attempted to use a weapon, such as a knife or sharp object, during the murders.

Investigators are still working to determine a motive and looking into whether ChatGPT played a role in the crimes after finding Abugharbieh’s search history, including inquiries like “can a knife penetrate a skull” and “can you bury a body in a trash bag.” 

“These searches were conducted days before our two victims went missing. This was calculated. This is what makes this so premeditated,” the sheriff said.

The next step in the case would be arraignment, which is set for 9 a.m. on May 18.

RELATED: TIMELINE: Murders of USF students Zamil Limon and Nahida Bristy

The full indictment from the grand jury can be viewed below.