Detroit Partnership Leadership Timeline

The Detroit Partnership — also known as the Detroit Mafia, the Detroit Crime Family, or simply the Partnership — is one of the most powerful and enduring organised crime groups in the United States. Established in the early 20th century by Sicilian immigrants, it has operated continuously for over a century, outlasting and outmanoeuvring nearly every other American Mafia family through a combination of strict discipline, fierce loyalty, and an almost pathological aversion to publicity.

Where New York families tore themselves apart with internal wars and high-profile killings, Detroit stayed quiet. Where other families haemorrhaged members to the FBI’s witness protection programme, Detroit held firm — only one made member has ever cooperated with federal authorities, an extraordinary record in the modern era of organised crime. At its height under Joseph Zerilli, the Partnership was turning over an estimated $150 million a year, with its fingers in gambling, loan sharking, labour racketeering, and deep inside Detroit’s powerful union movement.

Below is the complete leadership timeline of the Detroit Partnership from its origins in 1908 to the present day.

The full detailed timeline of each boss follows below, from the bloody early gang wars of the 1900s through to the quiet professionalism of the modern Partnership.

Vito Adamo — 1908 to 1913

The first prominent Italian gang leader in Detroit, after moving to the city in 1907 from his hometown in Sicily. He and his brother Salvatore controlled the flow of illicit liquor in and out of the growing Italian colony until the emergence of the Gianolla gang in 1912. During the first part of the 20th century the Adamo gang also used extortion as a means of making money, targeting Italian immigrants who were coming to Detroit to start a new life.

During 1912–1913 the Gianolla brothers started to encroach on Vito Adamo’s territory in Wyandotte, sparking a turf war. Over the following twelve months several Adamo gang members were killed and Adamo himself took refuge in Detroit and aligned himself with Mafia leader Pietro Mirabile. A string of arrests and killings would soon develop within both gangs. In November 1913 both Vito and his brother were gunned down near their home. Tony Gianolla would go on to take over the Adamo rackets.

Tony Gianolla — 1913 to 1919

Gianolla came from Sicily, moving to Detroit in 1901. Along with his brother Salvatore they had business interests in the Little Italy area of Detroit. Tony was fortunate to take over as boss — in 1913 he narrowly avoided an assassination attempt by the Adamo brothers that left him seriously wounded.

With the Adamos dead, the Gianolla brothers would rule Detroit with little resistance for several years. That would change in 1919. A rival mob boss, Giovanni Vitale, began plotting Tony’s death. Tony was gunned down in front of a friend’s home, shot by his own adopted son and personal bodyguard Tony Alescio, who was working for Vitale. Detroit’s underworld would never be the same again.

Salvatore (Sam) Gianolla — 1919

After the death of Tony, his brother Salvatore took over operations — but not for long. He survived one assassination attempt in which his brother-in-law Pasquale D’Anna was killed. In retaliation, John Vitale’s son and two others were shot in the lobby of Wayne County Jail.

Salvatore was said to have carried out the hits himself. He was charged but acquitted for lack of evidence. A brief calm followed. On October 2nd 1919, Salvatore was gunned down in front of the American State Bank on Monroe and Russell Streets. His funeral was one of the most elaborate Detroit had seen. Vitale was now in control.

Giovanni (John) Vitale — 1919 to 1921

Giovanni Vitale came to power at a violent and desperate time. His reign was immediately marred by the murder of his oldest son Joe, killed by surviving Gianolla faction members seeking revenge. Vitale himself would not last long either — he was mowed down by over 18 bullets fired from two passing cars on 14th Avenue and Marentette at 3 a.m.

Vitale’s death marked the end of the long conflict between the Gianolla forces and their rivals, and signalled a change in power at the height of Prohibition.

Salvatore Catalanotte — 1921 to 1930

Born in Trapani, Sicily, Catalanotte immigrated to Detroit around 1905. He started out bootlegging for the Gianolla brothers during the height of the Vitale-Gianolla War. Like many Detroit mobsters of that era, he survived several attempts on his life. He worked to form an alliance between the East and West factions, and his unified crime syndicate — known as the Pascuzzi Combine — is widely considered the direct precursor to the modern Detroit Partnership.

Catalanotte was the first Detroit boss not to die by assassination. It was pneumonia that took him in 1930, nine years after taking control. Every prominent member of Detroit’s criminal underworld paid their respects to the man they called Sam Sings in the Night — a translation of his surname.

Cesare Lamare — 1930 to 1931

Lamare led the Detroit Mafia for a brief period coinciding with the raging Castellammarese War. He had come to the US in 1897 and by the late 1920s had become a strong ally of Joe Masseria. Acting on Masseria’s urging, Lamare ordered the assassination of Gaspar Milazzo on May 31, 1930, at a Detroit fish market. Milazzo and his companion Sam Parrino were shot to death. Lamare also tried to take out Angelo Meli at the same time, but Meli didn’t show.

Meli quietly began plotting against Lamare. Even with a newly fortified home, Lamare was not safe. On February 7, 1931 he was gunned down inside his own house — the killer almost certainly a trusted ally who had been let in. His death opened the Tocco era.

Guglielmo “Black Bill” Tocco — 1931 to 1936

Black Bill Tocco arrived in Detroit in 1910 and joined his cousin Giuseppe Zerilli and Angelo Meli in backing the Gianolla brothers’ bootlegging operations. After Lamare’s assassination, Black Bill and Joe Zerilli were arrested but released for lack of evidence. Black Bill took over leadership at a pivotal moment — this is the point where the Detroit Partnership as we know it truly began to form, with the East and West factions coming together for the first time under a single authority. After five years at the top he stepped down to become underboss, handing power to his long-time ally Joseph Zerilli.

Joseph Zerilli — 1936 to 1977

Acting 1965–1973: Anthony Zerilli | Acting 1973–1979: Jack Tocco

Joe Zerilli was perhaps the most consequential boss in the history of the Detroit Partnership. A shrewd operator whose key principle was staying out of the limelight, Zerilli took the organisation to new heights. The Hazel Park Company gambling operation established in the late 1940s became a cash machine — at its peak the Partnership was generating an estimated $150 million a year.

In 1957 Zerilli was expected to attend the famous Apalachin Meeting organised by Vito Genovese. His driver Anthony Giacalone — Tony Jack — swung the car around after hearing on the radio that police were raiding the venue, sparing Zerilli from arrest. The FBI however had airport and hotel records placing him in New York at the time.

Zerilli was also deeply connected to Teamsters boss Jimmy Hoffa. The relationship soured when Hoffa discovered his wife was having an affair with Detroit mobster Tony Cimini. Rather than handle it through the Partnership, Hoffa had Cimini arrested for fraud. Shortly after, Jimmy Hoffa disappeared. Tony Jack Giacalone was a prime suspect. After 41 years at the top, Zerilli died of natural causes at 79, passing the family to Jack Tocco.

Giacomo “Jack” Tocco — 1977 to 2014

Acting 1977–1979: John Priziola | Acting 1998–2002: Tony Tocco

After Zerilli’s passing, consigliere Papa John Priziola served as acting boss until his death in April 1979, at which point Jack Tocco received the official nod in a ceremony actually captured on camera by the FBI. Like his predecessor, Tocco maintained a lengthy and largely quiet reign — three decades at the top, dying at 87 in 2014. His father Black Bill had sat on the same throne in the 1930s. The Tocco name runs like a thread through the entire history of the Detroit Partnership.

Jack Giacalone — 2014 to Present

Jackie The Kid is the current reputed boss of the Detroit Partnership and the son of the late Vito Giacalone, who passed away two years before Jack assumed leadership. He is also the nephew of the formidable Tony Jack Giacalone. Jackie rose through the ranks steadily — becoming a capo in 1990, taking over as street boss from Tony Jack in 2001, and overseeing gambling operations before assuming full leadership after Jack Tocco’s death. He is one of the most low-profile organised crime figures in America, largely overlooked by the media and unrecognised by casual observers of mob history. He also reportedly despises his nickname, which was given to him by his uncle due to his love of westerns and the legend of Billy The Kid.

The Partnership — or Syndicate as it is also known — has maintained its strength by enforcing a strict code of low conduct. Keep under the radar. Be smart. Never make yourself the centre of media attention.

As one anonymous source told us: “I was reprimanded several times for being too flashy. It doesn’t fly in Detroit. It ain’t New York.”

“Significantly reduced in numbers — recent FBI accounts place Motor City Mafia membership at roughly 25 made members with about 75–100 associates, compared to nearly triple that in the 1970s — the Detroit crime family is the most functional, healthy, and financially profitable Mafia syndicate in the entire country. While other regional Mob families have been destroyed from within by internal squabbling and government defection, the Motor City Mafia has only had one made member ever turn federal witness. The Detroit faction of La Cosa Nostra remains a silent but ultimately very real and deadly presence in American gangland culture while exhibiting no signs of slowing down.”

— Scott Burnstein, Motor City Mafia

Frequently Asked Questions — Detroit Partnership

Who is the current boss of the Detroit Partnership?

Jack Giacalone, known as Jackie The Kid, is the current reputed boss. He took over following the death of Jack Tocco in 2014, having served as a capo since 1990 and street boss since 2001.

How many bosses has the Detroit Partnership had?

Ten bosses since 1908 — from Vito Adamo through to Jack Giacalone. Of those ten, six were assassinated, two died of natural causes, one stepped down voluntarily, and one currently leads the family.

Why is the Detroit Partnership unusual among American Mafia families?

Its exceptional stability and secrecy set it apart. It has had only one made member ever turn federal witness, avoided the kind of internal wars that destroyed other families, and maintained a strict low-profile code that has kept it profitable and functional for over a century.

When was the Detroit Partnership founded?

Its origins trace to 1908 and Vito Adamo’s first Italian criminal organisation in Detroit. The formal structure known as the Partnership emerged in the 1930s when Guglielmo Tocco merged the East and West Detroit factions for the first time.

How much money did the Detroit Partnership make at its peak?

Under Joseph Zerilli, the Partnership was generating an estimated $150 million a year, primarily through gambling operations including the Hazel Park Company, established in the late 1940s.