I don't quote wikipedia articles that aren't backed with sources.

Here they are for this article.

[13]"REAL 'SOPRANO' SINGS N.J. mob boss cut secret deal". Daily News. New York. October 24, 2000

http://articles.nydailynews.com/2000-10-24/news/18146484_1_palermo-murder-conspiracies-decavalcante

[14] Mob Money. CNBC. June 23, 2010.

The similarity between Giacamo Amari dying of stomach cancer, Charles Majuri being upset about being passed over as outright boss, trying to kill Vinny "Ocean" Palermo because of it and Jackie Aprile dying of stomach cancer, Junior being upset at Jackie not naming a successor and his ensuing war with Tony would have to be the most freakish coincidence of all time if not for how obvious it is that the DeCavalcante situation in the late '90s was the basis for season one of The Sopranos.

"...the successful annihilation of organized crime's subculture in America would rock the 'legitimate' world's foundation, which would ultimately force fundamental social changes and redistributions of wealth and power in this country. Meyer Lansky's dream was to bond the two worlds together so that one could not survive without the other." - Dan E. Moldea