|Alex Clark (inset) is charged with aggravated robbery-indicating firearm after a hold-up near Wrigley on Monday.|
The victim was able to flag down a passing police sergeant who quickly radioed a description of the offenders.
Alex Clark of the Garfield Park neighborhood was arrested along with two juveniles inside of the Wrigleyville Taco Bell at 1111 West Addison moments later.
Clark, charged with one count of aggravated robbery-indicating firearm, was ordered held in lieu of $150,000 bail. He is due in court on Monday.
Details on the other two suspects are not available because they are juveniles.