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 one of the killers, because of his brother Pasqualino's recent murder by the North Side Gang. Police then announced that they suspected Capone gunmen John Scalise and Albert Anselmi, as well as Jack McGurn himself, and Frank Rio, a Capone bodyguard. Police eventually charged McGurn and Scalise with the massacre. John Scalise, along with Anselmi and Joseph 'Hop Toad' Giunta, were murdered by Capone in May 1929, after Capone learned about their plan to kill him, and before he went to trial. The murder charges against Jack McGurn were finally dropped because of a lack of evidence, and he was