ATTICA, N.Y. (WIVB) — The Attica woman who admitted to the brutal killing of her husband of 30 years has been sentenced to 25 years in prison.

Charlene Mess was charged with second-degree murder after her husband Douglas was found dead in a pile of manure in April of 2015. Authorities say she shot him in the back of the head and stabbed him with a pitchfork before the manure burial.

As she was indicted on the charges, which also included first and second-degree assault, doctors tried to claim that Mess was incapable of standing trial due to mental inability. A judge later ruled her competent to stand trial.

“We have been convinced for months that the defendant was faking or maligning her so-called incompetency as a delay tactic to avoid taking responsibility,” Wyoming County District Attorney Donald O’Geen said.

Mess never admitted to the murder and assault charges, but instead took a plea deal for a charge of first-degree manslaughter.

Her determinate sentence means that she must serve at least six sevenths of her 25-year sentence.