(CARBONDALE, IL) — A Carbondale man recently pled guilty for an armed robbery he did at a Perry County gas station last year. U.S. Attorney Stephen Wigginton says 32-year-old Stanley L. Cohen pled guilty to a two-count indictment charging interference with commerce by robbery in violation of the Hobbs Act, and using, carrying and brandishing a firearm during a crime of violence. Wigginton says evidence at the plea hearing established that on May 16 of last year,  Cohen committed an armed robbery at the Shell Gas Station in DuQuoin. Cohen, who was armed with a firearm, struck a clerk in the head with the gun. The clerk required staples for his wound. The penalties for the Hobbs Act violation are up to 20 years to be followed by three years of supervised release. The firearm offense carries a penalty of seven years to life in prison to be followed by five years of supervised release. Federal law requires that any term of imprisonment imposed on the firearm offense must be served consecutive, that is, in addition to any term imposed on the Hobbs Act charge. Both offenses also carry a fine of up to $250,000.