A Holliston man has pleaded not guilty to charges connected with a fatal crash that happened last summer. Paul Mangan was arraigned Tuesday for negligent motor vehicle homicide for the July 2024 crash that killed an Ashland man who was riding a motorcycle. Mangan stayed on the scene after the accident and cooperated with police but the resulting investigation by the Middlesex DA’s Office led to the charge. The judge released Mangan without bail. He has a pretrial conference set for August.
