<p>Four people are charged in connection with an attempted robbery of undercover federal agents Tuesday in Country Club Hills that resulted in two suspects being shot by officers.</p><p>Undercover agents with the Bureau of Alcohol, Tobacco, Firearms and Explosives were investigating a firearm-trafficking operation around 5:30 p.m. in the 18800 block of Loretto Lane, where they had arranged to buy firearms as part of the investigation, according to federal court documents.</p><p>Amir Fagan, 19, Demond Edwards, 18, and a third person arrived in a car, got out and pointed firearms at the undercover agents, trying to rob them, according to the U.S. attorney’s office for Northern Illinois.</p><p>Another group of ATF agents arrived at the scene, and one of them fired shots, striking Fagan, prosecutors said.</p><p>The driver of the suspects’ car, Chashonn Toney, 18, rammed his car into an ATF vehicle while trying to flee the scene, prosecutors said.</p><p>Edwards ran from the scene, but an undercover Chicago police officer chased him and stopped him about two blocks away, according to prosecutors and Chicago’s police oversight agency.