corey has the k2 go off at the neck. this is where spirits attach themselves. i think, the ghosts are scared ofnelton and don't attach to him but attach tp corey because he has so much energy not only attached to him already, but in him. as he is a medium, they are drawnvto him. i do believe once they feed off his energy they stay away from him. in other words, they stay where they are but when he is there, they attach to him. i also believe the only spirit completly attached to him is his uncle and the shadowman. if you want to know about the uncle look at the biltmore hotel video