noun / verb
gang
GANG/ɡæŋ/
A group of people associating or joining together for a shared purpose.
The gang works together to steal from the display case.

Etymology
The “going” sense probably developed through sets of things taken together when going somewhere, then companies of workers. Bands of people traveling together supplied the bridge to the disapproving sense of a criminal group.
In context
the creation of organized crime but it wasn't the Irish gang nor the Jewish mob that would ultimately rule it was the kosa norra better known as the Italian mafia