Well the FAA put my friend through hell, psychological testing, medical testing, she was grounded within twenty four hours. Just from a comment she made to a guy she hired. All she said was, I made a big mistake in my marriage (which everyone in the local aviation community knew about) and am so depressed over what I did. WHAM! She was done for at least a year. After this accident maybe it was the right thing to do.
I expect many people in many jobs know "what goes with the territory", which requirements can be stifling sometimes, and trusting the wrong "friend" can get you back-stabbed. And the endless grind of "he said/she said" investigations.
BUT, in the case of this latest tragedy, it would have been far better if this rogue psycho co-pilot had been grounded much before this. What happened was not an accident, either.
Your friend, I hope she is back flying! Sounds like she made one indiscreet and perfectly normal comment to a fellow pilot, who seized the opportunity to advance his own career...live and learn! Sadly, one must be untrustful of colleagues sometimes...but fortunately not always!