I think there may be scientific explanations for some phenomena that we just haven’t figured out yet. There are stories of places where intense emotion accompanied a tragedy and seems to have imprinted itself upon the place. Maybe it has something to do with magnetic fields.

If “Paul” built the house, I expect your local municipality has records with his name on it. Funeral directors usually keep records including obituaries and most have been in business a long time. My husband’s family in St. Louis still uses the same undertakers that buried his great-grandfather. Obituaries can provide a lot of useful information. Maybe Paul wants someone to tell his story.