Danvers - Danvers State Mental Hospital

This well known location has been featured in many reports and a movie.  Is there any way to tell what the source of the paranormal events are?

Beverly - Endicott College

Reynolds and Brindle dorms are haunted by a young girl named Julie who killed herself many years ago.  Is this the only source of haunting on the campus?

Taunton - Taunton State Hospital

Are there patients who have never left?  And why are the woods behind it rumored to be haunted as well?