Question: Angelo Henna masterminded the murder of an American mobster born in what year?

Context paragraphs:
Mickey Featherstone: Francis T. "Mickey" Featherstone (born September 2, 1948) is a former Irish American mobster and member of the Westies, an organized crime syndicate from Hell's Kitchen, Manhattan in New York City, led by James Coonan.  Featherstone committed several mob killings before he was convicted in 1986 of a murder he had not committed.  Facing almost 25 years in jail, he became an informant and brought down Coonan's gang.

Morris Kessler: Morris L. Kessler (January 6, 1912 – September 30, 1935) was an American mobster and member of Joseph Amberg's gang in Brooklyn during the early 1930s.  As Amberg's personal chauffeur and bodyguard, Kessler was a close associate in his organization until he was killed alongside his boss at a Brownsville auto garage by members of Murder, Inc. in 1935.  The gangland slayings of Kessler and Amberg were among the first major contract killings committed by Murder, Inc. and was one of the most publicized of the era.

Dean O'Banion: Charles Dean O'Banion (July 8, 1892 – November 10, 1924) was an American mobster who was the main rival of Johnny Torrio and Al Capone during the brutal Chicago bootlegging wars of the 1920s.  The newspapers of his day made him better known as Dion O'Banion, although he never went by that first name.  He led the North Side Gang until 1924, when he was murdered, reportedly by Frankie Yale, John Scalise and Albert Anselmi.

Mikey Coppola: Michael J. Coppola (born in May 18, 1946), also known as "Mikey Cigars", is an American mobster and captain in the Genovese crime family.  He has been a key figure in the Genovese crime family New Jersey faction.  It is unknown if he is related to Michael "Trigger Mike" Coppola, who was also a member of the Genovese family.  He made national headlines when he went into hiding for 11 years to avoid a possible murder conviction.

Angelo Genna: Angelo "Bloody Angelo" Genna (February 3, 1898 – May 26, 1925) was a Chicago bootlegger and organized crime leader during the Prohibition era.  The leader of his own Sicilian crime family, he was best known for his war with the North Side Gang leader, Charles Dean O'Banion.  Genna masterminded the assassination of O'Banion in November 1924.

Valenti Angelo: Valenti Angelo (1897-1982) (variant name Valenti Michael Angelo) was an Italian-American printmaker, illustrator and author, born June 23, 1897 in Massarosa, Italy.  He immigrated to the United States with his family in 1905, living first in New York City then settling in Antioch, California.  At the age of nineteen, Angelo moved to San Francisco, working by day as a labourer and spending his evenings and weekends at libraries and museums.  He soon became a versatile artist and an especially skilled engraver and printer.  Angelo's favoured medium was the linocut, and his prints depicting urban nocturnes and desert scenes of the American Southwest are particularly coveted by collectors and dealers.  In 1926, Angelo made his first book illustrations for the well-known, San Francisco-based Grabhorn Press.

Ray Ferritto: Raymond W. Ferritto (April 8, 1929 − May 10, 2004) was an Italian American mobster from Erie, Pennsylvania.  Ferritto is best known for the 1977 murder of Irish mob boss Danny Greene.  He served as hitman and soldier for the Cleveland and Los Angeles crime families.

Jimmy Fratianno: Aladena "Jimmy the Weasel" Fratianno (November 14, 1913 – June 30, 1993) was an Italian-born American mobster originally from Cleveland, Ohio, and later acting head of the Los Angeles crime family before becoming a US government witness.  Fratianno was the most powerful mobster to become a federal witness until Sammy "the Bull" Gravano agreed to testify against the Gambino crime family in 1991.

Danny Greene: Daniel John Patrick "Danny" Greene (November 14, 1933 – October 6, 1977) was an Irish American mobster and associate of Cleveland mobster John Nardi during the gang war for the city's criminal operations during the 1970s.  Competing gangsters set off more than 35 bombs, most attached to cars in murder attempts, many successful.  Greene had gained power first in a local chapter of the International Longshoremen's Association, where he was elected president in the early 1960s.  Greene pushed into Cleveland rackets and began competing with the Italian-American Mafia for control of the city.  He set up his own group called the Celtic Club, complete with enforcers.

Angelo Ponte: Angelo Ponte (born c. 1924) is an American mobster.  He was reportedly active in the Genovese family's carting rackets for many decades.  He was careful to cultivate political connections, and managed to have himself named a Knight of Malta by the Roman Catholic Church.

Supporting paragraphs: Angelo Genna Dean O'Banion
Answer: 1892