As I recall he ambushed the agents.
Peltier, the so-called “activist” was a violent communist “revolutionary” who was part of the murder of two fbi agents via contact shots to the head following an extensive gun battle.
Each agent died from gunshots to the head, fired at point-blank range. The pathology report suggested that Williams was killed with his hand held up to his face—the bullet that went through his head first blasted through his hand. Prosecutors would later suggest that Williams died begging for his life. Between the two of them, the agents got off a total of five rounds. The fatal .223-caliber bullets came from an AR-15 rifle. Witnesses reported seeing Peltier carrying an AR-15. (the only .223 used in the engagement.)
Peltier shot both of them in the head at extremely close range.
They cleaned up the brass but missed one .223 shell that matched Peltier’s .223 extractor.
Only Peltier had a .223.