A Dayton man pleaded guilty Wednesday to second-degree murder in the shooting death of his wife.

Fifty-nine-year-old Joseph Shuba faces about 15 years in prison when he is sentenced in Columbia County Superior Court.

If a first-degree murder case had gone to trial, Shuba's lawyer told the Union-Bulletin (http://bit.ly/U3Ut9w) he would have argued the shooting of Suzanne Shuba last April was self-defense.

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Information from: Walla Walla Union-Bulletin, http://www.union-bulletin.com