The fight over the control of the New York rackets started after the killing of Giosue Gallucci, the undisputed King of Little Italy, and his son on May 17, 1915.
The Camorra organization's close allies included the Navy Street and Coney Island gangs of Brooklyn, both Neapolitan in origin.
As with many gang conflicts, the Mafia-Camorra war started due to greed - in this case, Morello's ambition to control gambling in Manhattan.
The reason for the meeting was to parcel out control of all illegal activities in New York, including gambling, drugs, and extortion.
Nick Morello and his associates Steve LaSalle, Ciro "The Artichoke King" Terranova, and Giuseppe Verizzano met the Brooklyn gang members at Lauritano's cafe three weeks later.
Nick Sassi, a DeMarco employee who was a Navy Street sympathizer, got the three men past the doorman and inside the hall.
Inside the back room, DeMarco, Charles Lombardi, other gangsters, and numerous spectators were watching the card game.
Suddenly, Esposito pulled out his gun and fatally shot Lombardi; the nervous gunman had misread the signals from Verizzano and thought he was shooting DeMarco.
That evening, Nick and Vincent Morello, LaSalle, Terranova, and Verizzano traveled to the Navy Street Gang headquarters.
However, to Morello's chagrin, the Camorra organization also grabbed the opportunity and opened a couple of its gambling houses in Lower Manhattan.
A meeting was held in Philadelphia between Navy Gang representatives and the Camorra leadership about hitting the Morellos and taking complete control of Manhattan.
On September 7, 1916, Nicholas Morello and Charles Ubriaco were lured into a trap while being invited to a chat with Morano and Navy Street gang boss Lauritano.
Members killed in this war included Salvatore DeMarco, George Esposito, Gaetano Del Gaudio, Antonio 'Tony the Shoemaker' Parretti, and Joseph 'Chuck' Nazzaro.
The man who played the biggest part in the victory of the mafia was Ralph 'The Barber' Daniello, who testified against Navy Street's activities, from murders to rackets, leading to numerous convictions and indictments.
The Camorra boss Andrea Ricci was shot dead in November 1917, allegedly by his men, as they were afraid he could testify.
Ralph Daniello testified against Vollero and stated the gang paid money to a detective named Michael Mealli.
Alphonso Sgroia, a Navy Street gang member, was sentenced on June 17, 1918, he received twelve years in Dannemora for the Nick Morello case.
Johnny Esposito, the killer of Lombardi, tried to testify against Terranova, but once it was proved that they were in the same gang, Ciro was acquitted due to lack of corroboration.
However, on April 14, 1922, notice was served on DA Weeks that a motion would be made to grant a retrial on the case of Fevrola.
Tony Parretti received a death sentence for his part in the killing of Nicholas Morello and Charles Ubriaco on September 7, 1916.
Camorra - Pellegrino Morano (Coney Island boss), Alessandro Vollero (Navy Street gang leader), Ralph Daniello (became an informant), Leopoldo Lauritano, Alfonso Sgroia, Frank Fevrola, Antonio Parretti, Rocco Valenti, Silva Tagliagamba, Aniello Parretti, Johnny Esposito.