[Doctor Congo]

From the article:
“Ferency was a 30-year veteran of the Terre Haute police who had worked as part of a federal task force since 2010, authorities said.”

I would guess he was working with the FBI on the Terre Haute Joint Terrorism Task Force (JTTF).

[House Atreides]

“I would guess he was working with the FBI on the Terre Haute Joint Terrorism Task Force (JTTF).”
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In that case he wouldn’t be targeting Islamic, Antifa or BLM terrorists.