A man target shooting on state land Sunday morning started the Sawmill Fire that had burned 22,000 acres by Tuesday night, according to several sources who spoke with the Green Valley News/Sahuarita Sun. The man was firing at exploding targets when brush apparently ignited near Box Canyon and the Santa Rita Ranch about 11 a.m. He tried to put out the blaze, then called to report it. He later turned himself in, according to the sources, who spoke on condition of anonymity. John Cambra, a public information officer.