Sounds like he was hacked within his own organization.
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“Was O’Keefe asking too many questions regarding the company’s finances?”
No. He embarrassed Pfizer. A fatal mistake for any public figure.
This is the opposite of what was being reported initially.
O’Keefe wasn’t fired, he quit when the PV board wanted his spending of PV money to be subject to oversight.
Apparently he had complete autonomy over writing PV checks and there were reasons that led the board to think that he had been spending PV money on expensive personal items.
The board were concerned about their own legal vulnerability over PV’s use of its donations. You can find this information in the initial stories.