Its unlikely that they are killing themselves over the event. If anything, they are killing themselves over the way the government is completely compromised and holding political prisoners. They probably thought they had the most terrific of jobs working for the greatest of nations, and found out that the nation is run by metaphoric nazi- wannabes. Hell, at this point they are democrat socialists, so they may just be literal nazis.
that could be it- a relative said the same thing too- they thought cops wanted to speak out, but were forced not to- and l ikely pressured very hard over the whole stinking rotten deal that the l eft are engaged in
I think you are coming closest to reality. Cause of death: shame.