This Notorious Mobster In The New York Mafia Was Taken Down By His Own Son, Who Became An Informant And Testified Against Him In 2010

serpeblu - stock.adobe.com - illustrative purposes only, not the actual person
serpeblu - stock.adobe.com - illustrative purposes only, not the actual person

For decades, John “Sonny” Franzese was a notorious mobster in the Colombo crime family and a formidable figure in the New York Mafia.

Born in 1917, Franzese’s criminal career spanned everything from loan sharking and racketeering to extortion and murder, making him a legend in organized crime circles. He also had a reputation for violence. 

One of the most significant chapters in Franzese’s life involved his son, John Franzese Jr. In a dramatic twist that shocked the mafia world, Franzese’s own son turned against him, becoming an informant and testifying against him in 2010. Here is the story of the mobster who was taken down by his son. 

Franzese was among the head honchos at the height of the Mafia’s influence in 1950s New York. By the time he was 33-years-old, he was enjoying a wealthy and lavish lifestyle, frequenting popular nightspots in Manhattan and hanging out with celebrities such as Frank Sinatra and Sammy Davis Jr.

He worked out of Roslyn, Long Island, serving as a lieutenant to Joseph Magliocco, a Brooklyn gang chief who had succeeded Joe Profaci, the late Profaci family boss, in 1962.

In the 1950s, Franzese took part in many illegal activities, including loan sharking and brutal murders. By his own estimations, he killed 40 to 50 people during his time as a mobster.

In the mid-1960s, his loan sharking operations had reached the New York suburbs, where he drove husband and wife owners out of their ice cream shop to install a gambling operation.

However, severe measures were being taken on organized crime at that time, and law enforcement started to catch up to him. 

His life began to fall apart in late 1964 when he was ordered to testify about the Mafia’s crimes. He pleaded the Fifth Amendment 18 times in order to avoid spilling any details about his work.

serpeblu – stock.adobe.com – illustrative purposes only, not the actual person

In 1966, he was accused of financial fraud and was arrested by the FBI. He was listed as the leader of a gang that stole more than $65,000 from four banks and loan associations across three states. He was also suspected of being behind a $2 million jewelry theft from a Miami hotel.

Franzese was convicted in 1967 and sentenced to 50 years in prison. He won parole in 1978 but returned to prison at least six times for violating parole.

He remained in the mob even during his nineties, carrying out threats and wreaking havoc on the streets of New York. 

Finally, in 2010, his son John Jr. decided to cooperate with federal authorities and wear a wire to record conversations within the mob.

John Jr. provided incriminating evidence in a racketeering case against his father. As a result of John Jr.’s cooperation, Franzese was sentenced to eight years in prison at the age of 93. 

John Jr.’s decision to turn on his father was an unprecedented move, marking one of the most significant betrayals in the history of the Mafia.

It illustrated the harsh realities and complexities of mob life. Franzese’s long life of crime ended in 2020 when he died at 103-years-old.

Sign up for Chip Chick’s newsletter and get stories like this delivered to your inbox.

Emily  Chan is a writer who covers lifestyle and news content. She graduated from Michigan State University with a ... More about Emily Chan

More About: