A 19-year-old University of Arizona student was found dead in her Tucson apartment after telling a roommate she planned to break up with her boyfriend, who now faces first-degree murder charges after fleeing to Germany.

Julissa Rubi Salazar's body was discovered Thursday in her bed, fully clothed and covered by a blanket, inside the apartment she kept near campus. Varun Batchigari, her 20-year-old boyfriend, had already boarded a flight out of Tucson International Airport that morning. Federal and international authorities arrested him in Germany during what investigators described as a multileg trip headed for India.

An arrest warrant affidavit filed in Pima County, the jurisdiction covering Tucson, lays out a grim sequence of events. A roommate told police that Salazar had discussed ending the relationship with Batchigari and feared for her safety. A second roommate reported hearing "loud screaming and yelling" inside the apartment on Wednesday, followed by "another brief outburst" and then silence.

By Thursday morning, Salazar was dead. Her phone, which her mother had been tracking through a location-sharing feature just the day before, pinged at Tucson International Airport, roughly one hour before Batchigari's scheduled flight to Houston. The location-sharing feature had been disabled.

Salazar's room told its own story

Police found the apartment in disarray, with broken glass and a knocked-over plant. Salazar's body showed injuries consistent with strangulation: redness and scratches around her neck, and petechiae marks, tiny spots caused by burst blood vessels, on her eyes, eyelids, and face. Investigators also noted defensive wounds on her body, suggesting she fought back.

Her keys and phone were missing from the apartment. The phone's last known location, at the airport, placed it in proximity to Batchigari's departure point.

Salazar's mother raised the alarm after receiving a text from her daughter canceling a planned visit to Yuma, Arizona, where the mother lives. She told police "something was off with the messages." That instinct proved well-founded. The cancellation text, paired with the disabled location-sharing, now forms part of the prosecution's case that someone other than Salazar was controlling her phone after her death.

Roommate described a pattern of abuse dating to a Halloween party

The arrest warrant affidavit contains allegations that go well beyond the events of that final Wednesday night. A roommate told investigators that Batchigari had been abusive toward Salazar and had sexually assaulted and choked her after an altercation at a Halloween party. The year of that alleged incident was not specified in the NBC News report.

The sexual assault was never reported to police, the roommate said.

Batchigari also has an open misdemeanor assault case from May. Public records do not make clear whether that case involved Salazar, and the circumstances remain undisclosed. But the existence of an active assault charge against a man now accused of murder raises an unavoidable question: what, if anything, did the system do with the warning signs that were already on file?

Accountability in cases like these extends beyond the individual defendant. When prior allegations of violence, a misdemeanor assault charge, an unreported sexual assault, a pattern of choking, fail to trigger intervention, the institutions responsible for public safety owe an explanation. The same principle applies whether the failure involves long-delayed murder indictments or a local court system that lets a domestic violence case sit open while the defendant walks free.

Batchigari fled through Houston toward India before authorities caught up

After leaving Tucson, Batchigari flew to Houston and continued on a multileg itinerary toward Europe, with India as his stated final destination. Federal and international authorities, the specific agencies have not been named publicly, intercepted him in Germany and placed him under arrest.

He now faces charges of first-degree murder and kidnapping in Pima County and awaits extradition to Arizona. No public statement from Batchigari or any plea has been reported. The timeline for extradition proceedings remains unclear.

The speed of his departure, out of Tucson the same morning Salazar's body was found, her phone apparently in his possession, speaks to a degree of planning that prosecutors will likely emphasize. The kidnapping charge suggests investigators believe Salazar was restrained or confined before or during the attack.

A 19-year-old honored as 'mentor of the month' just months earlier

Salazar was enrolled in the University of Arizona's elite science, engineering, and math program. In March, the university named her "mentor of the month" and posted a tribute on its official Instagram account.

The university's post praised her work with fellow students:

"We are recognizing Julie for her intentionality in building rapport with students, connecting with each of them personally and providing individualized support of each of her students. Her positive attitude and bubbly demeanor is a wonderful addition to our team!"

A GoFundMe page set up for Salazar's family described her loss in stark terms. The pursuit of justice in high-profile cases, whether they involve decades-old international crimes or the murder of a college student in her own apartment, depends on authorities following through after the initial arrest.

The GoFundMe statement read:

"It is with unimaginable sadness that we share the unexpected passing of Julie, a beautiful 19-year-old daughter, sister, friend, and beloved member of her family. Julie was loved deeply, and she will be missed beyond measure."

Salazar was 19 years old. She was a mentor, a daughter planning a visit home to her mother, and a young woman who told a friend she wanted out of a relationship that frightened her. She never got the chance.

Batchigari sits in custody in Germany. The charges are filed. The extradition process will grind forward. But for Salazar's family and for every person who reads the details in that Pima County affidavit, the harder question remains: a misdemeanor assault charge was already open, a pattern of violence was already known to at least one roommate, and a young woman still ended up dead in her own bed.

The system that is supposed to protect people like Julissa Salazar owes more than a prosecution after the fact. It owes an answer for what happened before.