DUBUQUE, Iowa (AP) — A prosecutor says a man accused of killing his wife was a man irate over her affair and fearful that he’d lose their farm if she divorced him. Testimony resumed Wednesday after opening statements for the trial of 43-year-old Todd Mullis. He’s charged with first-degree murder in the slaying of 39-year-old Amy Mullis on Nov. 10 at the farm about 4 miles northwest of Earlville.

He reported that she’d accidentally fallen on a corn rake, but prosecutors say medical evidence showed she’d been stabbed in the back with it. The Telegraph Herald reports that Mullis’ attorneys don’t dispute that Amy Mullis was killed but say there is reasonable doubt about who killed her. Prosecutor Maureen Hughes said Tuesday that being a farmer meant everything to Todd Mullis, and he “had to find a way to keep that farm.” Defense attorney Gerald Feuerhelm agreed the farm was important to Todd Mullis, “but not so important that he would murder the mother of his children.”