Saint Valentine's Day Massacre was questioned fruitlessly by Chicago Police, and there the matter lay. Crime historians are still divided on whether or not the "American Boys" committed the St. Valentine's Day Massacre. Over the years, many mobsters, in and out of Chicago, would be named as part of the Valentine's Day hit team. Two prime suspects are Cosa Nostra hit men John Scalise and Albert Anselmi; both men were effective killers and are frequently mentioned as possibilities for two of the shooters. In the days after the massacre, Scalise was heard to brag, "I am the most powerful man in Chicago." He had
Saint Valentine's Day Massacre that both machine guns be brought there at once. Through the then relatively new science of forensic ballistics, both weapons were determined to have been used in the massacre – and that one of Burke's Tommy guns had also been used to murder New York mobster Frankie Yale (who participated in O'Banion's murder) a year and a half earlier. Unfortunately, no further concrete evidence would surface in the massacre case. Burke would be captured over a year later on a Missouri farm. As the case against him in the murder of Officer Skelly was strongest, he was tried in Michigan