The trial of Jose Ibarra, the man accused of murdering 22-year-old nursing student Laken Riley, began Friday with prosecutors presenting a chilling 911 call allegedly linked to the attack. Riley was found dead on the University of Georgia campus in February.

Slain Georgia nursing student Laken Riley “fought for her life” for a staggering 18 minutes before her skull was crushed by an illegal migrant, prosecutors said Friday — as opening statements got underway for the shocking murder case that was a cornerstone of the presidential election.

Jose Ibarra, the Venezuelan man who entered the U.S. illegally two years ago, is charged with murder and other crimes in Riley’s February killing.