text: unfinished business,  not accepting ones mortal demise, there are so many theories...but can you prove anyone of them?  Basically proving the existence of ghost is about the same as disproving them.   Pictorial evidence are all over the web and I have a few unexplained pictures I've taken myself.  Vocal recordings when no one had been present?  Another case of hauntings..so do people come back and why the come back ?  The reasons are as various as the theories.