GLENWOOD, Iowa (AP) — A Mills County jury has found an Ohio man guilty of fatally shooting an 18-year-old woman in western Iowa. Prosecutors say it took the jury a little more than two hours Friday to convict 27-year-old Mark Troutman, of Sylvania, Ohio, with first-degree murder in the slaying of Kathryn Weber. She was found bleeding outside her Glenwood workplace on Sept. 17 and died at the scene.

Troutman was arrested at a Glenwood motel that night. Authorities say Troutman was Weber’s ex-boyfriend and that he shot her because he was distraught over their breakup. Troutman’s defense attorney, Eric Nelson, had argued that Troutman intended to commit suicide in front of Weber, and hadn’t planned to harm her.

Troutman faces life in prison when he’s sentenced Feb. 13.