That is utter nonsense. There are entire networks dedicated to this kind of piffle.
Documented by whom? In the first case, the only reference to investigation is the mention of a
medium. And after the family left,
all the demon-ness magically ceased! Fancy that!
The Enfield "event" was "investigated by a guy from the Society for Physical Research--which is a deceptively scientific-sounding name for a group that studies paranormal stuff. You know, claiming to be experts in a phenomenon that doesn't actually exist. And what a shock--when Janet left the house,
no funny business to be found.
The third is hearsay. Second-hand accounts of a haunted house. The only real "investigation" came from--guess who?--a
parapsychologist. That's a fancy word for "fraud."
This is the best you got? Don't be such a sucker.
OMG! Scientific evidence psychokinetic powers!