An Akron man pleaded not guilty Wednesday to charges that he crashed into several Cuyahoga Falls police vehicles and seriously injured one officer. Donald Watson’s bond was set at $750,000 during his arraignment in Summit County Common Pleas Court. He will have his first pre-trial Wednesday before Judge Lynne Callahan.A Summit County grand jury indicted Donald Watson, 46, of Cutler Parkway, on charges of attempted murder, felonious assault, aggravated arson, failure to comply with the order of a police officer, vandalism, and criminal damaging.