Kentucky individual admits to charges of homicide, asserting mental illness as a factor in the case involving his grandmother's death.

A Kentucky teenager has pleaded guilty but mentally ill in a brutal murder case involving his grandmother. Wyatt Testerman, 19, admitted to killing 74-year-old Cheri Oliver during an unprovoked attack at her home in October 2024. His plea, made on Tuesday, allows him access to mental health treatment while incarcerated.

### Attack Details and Charges

Testerman has been charged with murder following a violent incident that prosecutors described as shocking. Allegedly, he recorded the assault on his grandmother, setting up a phone to capture the attack. The video reportedly shows him pushing Oliver to the ground and physically assaulting her. Authorities revealed that he struck her more than 40 times, using a metal cup and stomping on her repeatedly. At one point during the assault, he is heard questioning how she was still alive after the violent episode.

Law enforcement arrived at the scene to find Oliver unconscious and covered in blood. Medical reports later confirmed that she died from blunt force trauma to the head. Testerman’s mother reportedly witnessed the attack and attempted to intervene. Additionally, it was reported that Testerman had previously accused Oliver of being “suicidal and a terrorist,” prior to the assault.

### Legal Proceedings and Future Sentencing

Kenton County Commonwealth Attorney Rob Sanders confirmed that his office will seek the maximum penalty, which could lead to a life sentence. Testerman’s plea does not involve a deal with prosecutors. During the court proceedings, he admitted to struggles with substance abuse, including a prolonged use of hallucinogenic drugs. He explicitly stated that he attacked his grandmother without clear reasoning.

Initially, Testerman was expected to pursue an insanity defense in the upcoming trial scheduled for May. However, a defense expert later concluded that he suffers from antisocial personality disorder, which likely influenced his decision to enter a guilty plea. In court, Testerman mentioned experiencing hallucinations during the proceedings but acknowledged his understanding of the situation.

Scheduled to be sentenced on July 7, he faces a range of 20 years to life behind bars. The case continues to draw attention due to its disturbing nature and the age of both the victim and the perpetrator.

Source reference: Full report