https://theunexpectedcosmology.com/john-lennon-lives-the-day-mk-ultra-created-a-beatles-impersonator/
" I was There" wut a joker.
The writer of the above essay says he was MK ed and he thinks he's really Mark Staycer, which is totally false, must be logically.
Read Miles Mathis essay, he goes into detail evidence, if you want to dig on it.
http://mileswmathis.com/lennon.pdf