Two small rescue helicopters were involved in the crash . The PA-24 is registered to a Sussex , New Jersey , man , and the PA-28 is registered to a Boonton , New Jersey , man , according to FAA records . In addition to the two dead , another person was critically injured , authorities said . Helicopter crews responding to the scene of the wrecked plane saw the other .
Two small rescue helicopters were involved in the crash . In addition to the two dead , another person was critically injured , authorities said . Helicopter crews responding to the scene of the wrecked plane saw the other .