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RALEIGH, N.C. (AP) -- An attorney for a North Carolina man convicted last year of killing his wife has filed an appeal, saying the judge made wrong decisions about computer evidence and expert testimony.

Attorney Ann Peterson filed the appeal Tuesday for Brad Cooper, the Cary man convicted last year in the death of his wife, Nancy. Brad Cooper was sentenced to life in prison.

Nancy Cooper was found face-down on July 11, 2008, on a cul-de-sac in an undeveloped subdivision.

Brad Cooper has maintained that his wife went jogging and never returned. Wake County prosecutors argued that he strangled Nancy Cooper after she got home from a neighborhood party.

The Coopers' daughters went to live with relatives in Canada after the trial. Brad and Nancy Cooper were born in Canada.

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