A 21-year-old man was arrested in Nashville for the murder of a nurse who was driving to work in Tennessee.

Devaunte Hill was arrested at his East Nashville apartment for allegedly shooting Caitlyn Kaufman as she drove on Interstate 440 on her way to work on December 3.

Metro Nashville police say the bullets from his gun match the shell casings found near Kaufman’s wrecked SUV.

The break in the case comes after a concerned citizen came forward identifying Hill as the suspect.

The person also provided information about the whereabouts of the 9 mm gun that was allegedly used to kill Kaufman.

Hill has been charged with criminal homicide, and is being held at the Nashville Downtown Detention Center without bond.

“While it was a relief to be able to sign the arrest warrant, it was an exceptional relief to be able to call Diane Kaufman, who is back in Pennsylvania right now,” Metro Nashville Police Department Lead Detective Chris Dickerson said.

“Obviously a lot of tears, just joy. She said that she was able to get some closure before the funeral.”

Diane Kaufman, the victim’s mother, said she’s glad there’s been an arrest in her daughter’s case.

“I’m so relieved,” she said, “A part of me is so relieved they got him. I just get chills every time I think about it.”

Kaufman was inexplicably struck in the shoulder by a single bullet while on her way to work at St. Thomas West Hospital in Nashville.

She pulled over on the side of a road after she was shot, where an officer on patrol approached her and saw that she was wounded.

The officer called for back up, but Kaufman died at the scene.

“Caitlyn was selfless, she was full of life, she lit up a room as soon as she walked into it,” she said in an interview.

“She had a contagious laugh. She had beautiful blue eyes and a heart of gold.”