Chicago Pizza and Oven Grinder Company Chicago Pizza and Oven Grinder Company Chicago Pizza and Oven Grinder Company is a restaurant located in Chicago, Illinois. The restaurant was founded in 1972, and specializes in a signature dish called the "pizza pot pie." It enjoys local popularity and has appeared in many publications and television shows. There is no knowledge of when the building was first built. It has been speculated that the building had some ties to gentility, but those ties were severed in 1929. The parking garage across the street became known as the location of the "St. Valentine's Day Massacre", the infamous murder of
Saint Valentine's Day Massacre a true detective magazine during the winter of 1935–36. Georgette Winkeler revealed that her husband and his friends had formed a special crew used by Capone for high-risk jobs. The mob boss was said to have trusted them implicitly and nicknamed them the "American Boys". Byron Bolton's statements were also backed up by William Drury, a maverick Chicago detective who had stayed on the massacre case long after everyone else had given up. Bank robber Alvin Karpis later claimed to have heard secondhand from Ray Nugent about the massacre and that the "American Boys" were paid a collective salary of