Dolazy, that assumes the spirits cross over. I've come to understand, from my guides, that the more negative a human is, the less likely they are to want to cross over because they fear that all that is waiting for them is hell or damnation. They fear judgment, so why bother crossing over? They feed off the energy of people on Earth and stick around.
That "T" entity may not have even been telling us the truth.
When I was channeling the entity in the Amargosa hotel for the
Criss Angel show I realized after we were talking to him for about 20 minutes that he was lying to keep us around so he could feed off our energy even longer. I even told the investigators and the crew people that we should leave so he couldn't feed on our energy anymore. The entity got really mad at that.