A boater died on Monday after the vessel crashed in the Raritan Bay, the New Jersey State Police said. State troopers responded to a report of an unresponsive person in a boat that was traveling in a circular pattern in the bay near Sayreville in Middlesex County. Investigators on the scene determined the boat had run aground, officials said. The driver, Kenneth Halvorsen Jr., 53, of Toms River, was brought to the hospital, where he was later pronounced dead, authorities said. State Police did not specify which injuries he suffered as a result of the crash. An investigation into the incident i…