So he was arrested for something that never happened? Right out of “Minority Report”.
He wasn’t charged with anything. The “arrest” was to take him for a psych evaluation.
As far as I’m concerned, leaving pictures of a recent mass murderer all over your desk at work, coupled with odd comments and behavior does constitute the required ‘possibility of being a danger to yourself or others’ required to force a psych evaluation.
I’d want any co-worker of mine who did the same to be dragged-in for an evaluation because that is extremely disturbing behavior.