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 of the Egan's Rats gang, working for Capone, are suspected of a significant role as are members of the Chicago Police Department who are said to have had personal revenge as their motive following the killing of a police officer's son. At 10:30 a.m. on Thursday, February 14, 1929, seven men were murdered at the garage at 2122 North Clark Street, in the Lincoln Park neighborhood of Chicago's North Side. They were shot by four men using weapons that included two Thompson submachine guns. Two of the shooters were dressed as uniformed policemen, while the others wore suits, ties, overcoats