Prosecutors say a Minneapolis man admitted that he killed his 89-year-old mother because he was upset that a bedbug outbreak would get her kicked out of her home.

Michael Gallagher is charged with second-degree murder in the death of Patricia Ann Gallagher. The 62-year-old's bail was set at $2 million Tuesday.

The St. Paul Pioneer Press (http://bit.ly/1IlqLsj ) reports that Gallagher told investigators that he went to his mother's downtown Minneapolis apartment on Thursday to help her clean and that he called 911 the next morning and said he had killed her.

Police say Gallagher said he beat his mother with a sculpture of himself and that he tried to smother her with a pillow and strangle her. He doesn't have a lawyer yet.

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Information from: St. Paul Pioneer Press, http://www.twincities.com