William Colbeck (gangster) and no one was charged in his shooting. On the strength of the testimony of Egan gangster Ray Renard, Colbeck and eight of his men were convicted on November 15, 1924, and sentenced to 25 years in federal prison. While in the Atlanta Federal Penitentiary, one of his cell mates was Chicago gang boss Al Capone, who assisted him in his work with the Catholic chaplain. Legend has it the two hit it off so well they planned to go into business together once they were both paroled. These plans were foiled by Capone's transfer to Alcatraz in 1934. Paroled
Al Capone suspected of being involved. Torrio headed an essentially Italian organized crime group that was the biggest in the city, with Capone as his right-hand man. He was wary of being drawn into gang wars and tried to negotiate agreements over territory between rival crime groups. The smaller North Side Gang led by Dean O'Banion (also known as Dion O'Banion) was of mixed ethnicity, and it came under pressure from the Genna brothers who were allied with Torrio. O'Banion found that Torrio was unhelpful with the encroachment of the Gennas into the North Side, despite his pretensions to be a settler