Oswego Woman Who Killed Girlfriend, Staged Scene Learns Prison Sentence

OSWEGO, IL — An Oswego woman was sentenced to 30 years in prison in a plea agreement related to the death of her girlfriend in February 2023, according to the Kendall County State's Attorney's Office.

Alexia Telles, 28, was charged with first-degree murder in the death of Annissa Ellen-Williams. She agreed last week to plead guilty to the charge in exchange for the sentence.

"This sentence ensures that justice is served, and the victim’s family does not have to endure the pain of a trial," State's Attorney Eric Weis said in a statement. "Telles has accepted responsibility for the heartless act she committed against someone she professed to care so much for."

Just before 7 a.m. Feb. 18, Oswego police responded to the 100 block of Presidential Boulevard, where they found a woman lying in a driveway dead from an apparent gunshot wound.

At the time, police were told Ellen-Williams shot herself while driving on a highway before Telles took control of the car and drove it to their house in Oswego. Investigators concluded Telles and Ellen-Williams got into an argument while driving, then Telles "intentionally killed" her girlfriend and tried to make it look like a suicide, Weis said Monday.

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Telles, of the 100 block of Presidential Boulevard in Oswego, was represented by Chicago attorneys Josh Adams and Alana De Leon, and the case was prosecuted by Weis and Criminal Chief Frank Gorup.

"These cases can be difficult to prosecute because only two people know exactly what occurred that fateful night," Weis said. "However, the investigative work done by law enforcement and the Coroner’s Office led to the successful prosecution of Telles for the murder of Ms. Ellen-Williams."

Telles will be required to serve her full 30-year sentence before she will be on mandatory supervised release for three years, according to Weis. Telles has been in custody since her arrest.