Organized crime in 1908 in the U.S.:
A gang war breaks out between Paul Kelly's Five Points Gang and "Kid Twist" Max Zwerbach's Eastman Gang.
By the end of the year Johnny Torrio's two dozen Brooklyn brothels earn over $5,000 a week.
Frankie Yale is allowed to join Johnny Torrio's Black Hand organization in New York.
Hymie Weiss is first arrested for burglary. It is this incident that, while caught robbing a perfume store, he is dubbed the "Perfume Burglar" by Chicago reporters.
Joseph Petrosino arrests Neapolitan camorrista Enrico Costabili where he is later deported to Italy.
Sicilian mafiosi Raffaele Palizzolo, wanted for murder, escapes Sicily and arrives in New York. He later leaves the city before Joseph Petrosino can arrest him.
Salvatore Sabella is sentenced to three years imprisonment for the murder of a local butcher, of which he was an apprentice, in 1905.
April 25 - Frank Costello is arrested for assault and robbery but is released.
May 14 - Eastman Gang leader Max Zwerbach and lieutenant Vach Lewis are killed in an ambush by members of the Five Points Gang after an argument between Zwerbach and Louis Pioggi over a Coney Island dance hall girl Carrol Terry.
July 23 - Labor racketeer Cornelius Shea is sentenced to six months in prison for abandoning his wife and two young children.
Anthony Joseph Biase, leader of the Omaha faction of the National Crime Syndicate
Harry Maione "Happy", Murder, Inc. hitman
Ernest Rupolo, Genovese crime family assassin
Angelo Tuminaro, Lucchese crime family member and drug trafficker
March 17 - Raymond L.S. Patriarca, New England Mafia Don
May 24 - Sam Giancana [Salvatore Giancana], Chicago Crime Syndicate leader
June 30 - Samuel "Teets" Battaglia, member of the Chicago Outfit
May 14 - Max Zwerbach, Eastman Gang leader
May 14 - Vach Lewis, Eastman Gang lieutenant
1908 in organized crime Wikipedia (Text) CC BY-SA