I agree with DavelJ,
This was a probably the culmination of typical suicide revenge issue, narcissistically copycatting a recent more infamous event. He snapped. Maybe he couldn’t help himself,but he had a great part in bringing about his problems. It is scary though.Just not apocalyptic, high odds your next scary.
It might make some auditors and others in government with the power to exact fees and penalties be more careful. It isn’t like government(s) never tries to shake people down or bury their legitmate rights because of money.