Sorry to hear about your son, Jackie.
My dearest departed sister, loved Columbo and Midsomer Murders...especially the spooky episodes, she loved all things ghostie...Christmas is not the same without her sending me an M.R.James ghost story, although she knew I had read or seen them a million tines before.
And just one more thing (sorry, could not resist), as an aside, Jackie, did you know Peter was a very accomplished artist...look him up...some wonderful charcoal/pencil drawings.

Bless them both, your son and my sister.