Some guy who I used to work with at GE Capital (Mason, OH) started posting shit like this on Linkedin. He was a Princeton grad; played football there... LB / TE sized guy. At the time, nearly 25 years ago, he was pretty articulate and seemed as well grounded as a mid-20s single dude could be.
Over the years his posts started getting a little more cryptic up until a couple of weeks ago and he went complete nut-job. His posts were so outrageous that I either needed to cut ties for fear that he might post something bizarro that it might somehow get associated with me or (seriously) call his local PD and recommend a wellness check.
Of course, I ended up breaking the link... and then immediately pinging a friend who used to work with us back at GE. She ended up turning up some crazy arrest records and stuff.
Sadly, people break.