I read the entire journal entry, he appears to be a troubled man or maybe he knows more than he is willing to admit?
I'm sure he's troubled. I'm *very* open-minded regarding reported alien encounters, but some of these reported scary ones with large numbers of aliens (particularly small aliens) appear to be indistinguishable from lilliputian syndrome, a type of hallucination associated with certain kinds of mental and physical stress (accidental or purposeful drug use, sleep deprivation, or some combo of the two, such as smoking crack for three days straight; also some methods of torture).