According to a report from The Associated Press, Alice Uden, a 75-year-old woman, was convicted Thursday of murdering her husband in the 1970s.

She was found guilty of second-degree murder and faces 20 years to life in prison.

Uden had argued that she shot her 25-year-old husband, Ronald Holtz, because she was trying to defend her two-year-old daughter Erica.

According to People, that claim was disputed by several of Uden’s children, who told the court that Alice had informed them after Holtz’s death that she killed him in his sleep.

“She just, out of the blue, told me how she got up one night, got a .22, and shot Ron in the head,” Alice’s son Todd Scott told jury, according to the magazine. “I don’t know why a mother would tell her children she killed somebody.”

Alice maintains, however, that she killed Holtz to prevent him from hurting her two-year-old daughter. Holtz’s remains were discovered in an abandoned mine in Wyoming.

Reuters reports that suspicions about Holtz’s death were raised during a separate investigation by the Wyoming Division of Criminal Investigation Cold Case Team into the disappearance of Virginia Uden and her two children. Gerald Uden, Alice’s current husband, is charged with murdering the three in 1980.

How much prison time does Alice deserve? Share your thoughts in the comments section.