This is a private citizen bringing charges, not a federal prosecutor, lowly or otherwise.
Private citizens do not bring criminal charges. Were it a criminal case, the caption would be United States v. or The People of the State of [blank] v., or The State of [blank] v..
The origin case number was 1:21-CV-00111-JNP. It is a civil suit for damages, not a criminal action which can only be brought by a government prosecutor.
I should have just left it at a private citizen was bringing the case.