A chilling 911 audio recording has captured the final moments of Georgia nursing student Laken Riley’s life, who was tragically killed while out for a run.

Jose Ibarra went on trial Friday for murder and other crimes in connection with the February killing of Riley, whose body was discovered on the University of Georgia Campus.

According to prosecutor Sheila Ross, 22-year-old Riley activated the emergency function on her cell phone and dialed 911 while jogging on campus around 9:11 a.m. on February 22. The brief, muffled audio was played in court. Though the phone dialed 911, and no one spoke, the audio reveals some disturbing noises that may be Riley’s last moments.

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Prosecutors turned on the audio recording for the jury. On the call, the 911 operator repeatedly says, “hello, how can I help?” and “hello, can anyone hear me?” No one answers on the other end. Noises can be heard like rusting, and a loud bang. Then a low, mumbling male voice can be heard, before several loud bangs are heard in a row.

Allyson Phillips, Laken Riley’s mom was seen weeping during the playback. Prosecutors claim that Riley fought for her life for an agonizing 18 minutes before she was killed, reports the Express US.

Ibarra has chosen to waive his right to a jury trial, meaning his case will be heard and decided by Athens-Clarke County Superior Court Judge H. Patrick Haggard. Lawyers expected to argue that Ibarra struck the 22-year-old Augusta University College of Nursing student in the head, suffocated her, and intended to sexually assault her.

Although they have decided not to pursue the death penalty, they stated in a court filing that they plan to seek a sentence of life in prison without the possibility of parole.

The murder has ignited a national debate over immigration after federal authorities revealed that Ibarra, a Venezuelan national, entered the U.S. illegally in 2022 but was allowed to remain while his immigration case was being processed.

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Republicans, including President-elect Donald Trump, have pointed fingers at President Joe Biden’s Democratic border policies as the cause of her death.

During his State of the Union address, which took place just weeks after the murder, Biden mentioned Riley by name while discussing border security.

Ibarra faces charges including one count of malice murder, three counts of felony murder, and one count each of kidnapping, aggravated assault, aggravated battery, hindering an emergency telephone call, tampering with evidence, and being a peeping Tom.

Prosecutors allege that on the day of Riley’s murder, Ibarra was seen looking into the window of an apartment in a university housing building, leading to the peeping Tom charge.