Prosecutors say 56-year-old Kathleen Folden, a truck driver from Kalispell, Mont., pleaded guilty to a class one misdemeanor count of criminal mischief.
Her attorney, Derek Samuelson, said the plea deal was just and appropriate.
Authorities say Folden will serve 18 months of unsupervised probation after she used an 18-inch crowbar to smash a Plexiglas case inside the Loveland Museum/Gallery on Oct. 6 and then destroyed a piece of artwork called "The Misadventures of Romantic Cannibals."
A part of the Enrique Chagoya painting shows a man, who appears to be Jesus Christ, engaging in a sex act with another man. Many have called it "smut" and asked that it be removed. Supporters say it speaks about the Catholic Church's sex abuse scandal.
As Folden destroyed the lithograph, witnesses say she screamed "How can you desecrate my lord?"
Folden, who was wearing a T-shirt that read "Tougher than nails," was led away in handcuffs. She was released when an anonymous person paid her bond.
The Loveland Museum/Gallery announced that the art is no longer on display and city officials say it will not be replaced. It was one of 30 lithographs made of the original piece of work.
Authorities say restitution for the destroyed artwork will be determined at a hearing on Jan. 28.
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