ights the risks law enforcement officers face every day while working to protect our communities and disrupt violent crime, ATF, Special Agent-in-Charge Christopher Amon said in a statement. I want to recognize the professionalism, courage, and swift actions of the agents and officers involved in this incident, and we are grateful that all law enforcement personnel are safe. Charges filed Dig deeper: Both Fagan and Edwards were charged with attempted robbery. Toney was charged with forcibly assaulting a federal officer. Federal authorities also announced charges against a fourth individual connected to the investigation. Prosecutors allege 29-year-old Tevin Curlee of Country Club Hills unlawfully possessed and transferred a machine gun. According to court documents, Curlee sold a handgun equipped with a machine gun conversion device to undercover law enforcement officers during a June 3 transaction in Crestwood. What's next: The Civilian Office of Police Accountability launched an investigation because a Chicago police officer fired shots during the incident.