A juvenile was arrested Thursday attempting to carjack an Ocean County Parks employee at Freedom Fields Park in Little Egg Harbor. At 4:30 p.m., Little EggHarbor Township police were called to the park, on Route 539. When K-9 Officer Brian Smith and his partner, “Hooks,” arrived on the scene, they met with an Ocean County Parks security guard who said a man had approached his vehicle, brandished a knife and demanded his vehicle.