In February 2023, Alexia Telles, 28, was arrested and charged with the murder of her girlfriend Annissa Ellen-Williams.
Telles and the victim had allegedly got into an argument while Ellen-Williams was driving, according to the Kendall County State's Attorney.
Officials said Ellen-Williams later died from a traumatic head injury.
Investigators concluded that Telles had intentionally "killed Ms. Ellen-Williams and tried to make it look like a suicide."
Nearly two years later, Judge Jody Gleason sentenced Telles to 30 years in the Illinois Department of Corrections in a plea agreement.
Telles will have to serve 100% of her sentence. She will serve three years of mandatory supervised release after completing the 30-year prison sentence.