GILLETTE, Wyo. (AP) — A judge has sentenced a woman who killed her husband for nagging her too much to 20-30 years in prison.

Deborah Johnson, of Gillette, originally was charged with first-degree murder for killing Brian Johnson but pleaded guilty to the second-degree murder.

Wyoming District Judge John Perry sentenced Johnson on Tuesday. Perry told Johnson he doubted she would kill again but noted her history of drug and alcohol abuse.

Johnson apologized for shooting her husband, whom she called her "best friend ever."

Johnson shot him as he watched television in January 2016. Her blood-alcohol content was more than three times the legal limit for driving.

She told police her husband constantly nagged her and she wanted him to shut up.