Serviceman thwarts robbery on CTA

A military serviceman nabbed three robbers at a CTA Red Line station on the Near North Side this evening after the suspects snatched someone else’s iPhone.
A police officer who knew of the incident did not release the serviceman's name, because he was not certain the man wanted his actions reported, but the officer felt the heroic response should be noted. The officer believed he was a reservist
The serviceman, who was waiting for a train at North/Clybourn station about 6:30 p.m., works as a security guard, and was on his way to his job when the robbery victim flagged him down on the platform.
When the serviceman chased the suspects up the stairs, one of them pulled out a replica gun, police said. This prompted the security guard to draw his gun, which the officer said he was allowed to carry, and the suspects then surrendered.
The three were detained by the serviceman until Chicago police officers arrived to the scene, police said. The iPhone has since been returned to the robbery victim.