Antonio Vierra, the arson suspect in two Oahu brush fires, pleaded not guilty in court on Thursday. Vierra is accused of starting the fire in Kunia and Haleiwa on Aug. 23, 2025. The defendant was released after he posted $50,000 bond for the first charge in the Kunia Road fire. He was arrested a second time on Aug. 29 for the Haleiwa fire after he barricaded himself in his home in the Punchbowl area…