Dark Attacker – Waikato

A year or so back, I was going through some of my old dusty case file/clipping books that date back to the early 80s. I found these old drawings made for me by a person I was trying to help back in my early days, around 1986. He was apparently under ‘attack’ by a dark entity that would be seen from time to time in his home.
I met him at a meeting group for alien abductees. He didn’t believe what he was encountering was an alien but had nowhere else to turn to talk about it. I spent a good two years staying in touch with this person and visiting his home numerous times to just sit and talk, in the hope of observing or documenting anything he was experiencing for myself.
I asked him to draw for me exactly what he saw. His description of the being was that it was very tall, maybe 7ft and moved very slowly. Mainly just standing there watching, swaying
a bit, then stepping behind a wall and disappearing. Very thin with long arms and legs. Red glowing eyes and a pointed head. No nose, mouth, clothing, or other visible features. The fingers were very long and ‘spike’ looking.
I have long since lost contact with this guy and remember him only by his first name, Greg, as we were only on a first-name basis. All I had was a name and an old phone number (prior to cell phones and the internet).
It was certainly an interesting case that I had no answers for at the time.
Has anyone here experienced anything like the being in the sketches?