I do not have any facts that prove or disprove any

I do not have any facts that prove or disprove anything. Absence of proof against is not proof for. Also it's impossible for anyone to know 100% that their linkedin messages to doc are actually him (unless they actually know him in person / out of band verification). I was skeptical of the linkedin for a while, recently my confidence in the linkedin has grown a lot but its not 100%. I'm simply remaining cautious and keeping things in perspective.