Mafia in the 1920s By adamdell Jan 17, 1920 Prohibition takes full effect with the Volstead act. police enfocement is requried Apr 11, 1920 JIm colosimo is killed this allows Capone to rise in power 1921 Carlo Gambino arrives in New York 1923 Capone sets up his headquarters in cicero a towm outside of chicago Jan 24, 1925 Torrio retires capone gains full control 1927 Gangs form alliances against Capone Feb 14, 1929 Capone orders the st valentines day massacre against members of the north side gang May 27, 1929 Capone is arrested on weapons charges in philadelphia he serves 10 months in prison 1931 2 years later Capone would be charged with tax evasion sentenced to 11 years in jail Capone's arrest marked the end of an era for the mob in the 1920s
