(Fox News) Police surrounded the home of a suspected gunman Wednesday after he opened fire at an office building in Arizona’s largest city and wounded three people, one of them reported dead.

Fox10 reports that the suspect’s name is Arthur Harmon, 70, and he was last seen driving away from the scene in a white Kia Optima. His current whereabouts are unknown. Police have not yet put out his photo.

Harmon’s wife is reportedly cooperating with the investigation.

Authorities believe there was only one shooter and don’t think it was a random act.

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