The Justice Department on Tuesday indicted a man with an extensive criminal history for the murder of a Ukrainian refugee on a North Carolina train last month, potentially leading to a death sentence.

This federal indictment emerges amid rising concerns about why Decarlos Brown Jr., with 14 prior criminal cases, remained free before allegedly wielding a knife to kill 23-year-old Iryna Zarutska in a seemingly random, video-recorded assault. This incident has intensified debate over whether cities like Charlotte are effectively dealing with violent crime, mental health issues, and public transit safety.

Zarutska had fled to the U.S. to escape the conflict in Ukraine, with relatives describing her determination to pursue a safer life on a GoFundMe page.

Brown was taken into custody at the scene and charged with first-degree murder by state prosecutors. He now also faces a federal charge of causing a death on public transportation, a crime that could result in a life sentence or the death penalty.

Attorney General Pam Bondi said the killing was “a direct result of failed soft-on-crime policies that put criminals before innocent people.”

“We aim to enforce the harshest penalty for this heinous act—he will never enjoy freedom again,” stated Bondi.

In North Carolina, first-degree murder can result in the death penalty; however, no executions have taken place since 2006 due to legal disputes surrounding lethal injection drugs and the required presence of a doctor during executions.

Brown had cycled through the criminal justice system for more than a decade, with 14 prior cases in Mecklenburg County, including serving five years for robbery with a dangerous weapon, according to court records. He was arrested earlier this year after repeatedly calling 911 from a hospital, claiming people were trying to control him. A judge released him without bail.

His mother told local television she sought an involuntary psychiatric commitment this year after he became violent at home. Doctors diagnosed him with schizophrenia.

Video released Friday shows Zarutska entering the light-rail train and taking a seat in front of Brown, who was seated behind her. Minutes later, without any apparent interaction, he pulls out a pocketknife, stands and slashes her in the neck, investigators said. Passengers scream and scatter as she collapses.