UPDATE (1/28):
Federal prosecutors have filed a criminal complaint against Patrick Gary Schlegel in U.S. District Court, charging him with assault on a federal officer, prohibited possession of a firearm, and transportation of an illegal alien.
According to the U.S. Attorney’s Office, Schlegel allegedly fired at a manned U.S. Customs and Border Protection helicopter during a human-trafficking pursuit near Arivaca, prompting a Border Patrol agent on the ground to return fire…