James Cahill, former president of the New York State Building and Construction Trades Council, used to carry a lot of clout. But since his October 1 indictment for solicitation of bribery, and the indictment of 10 other union officials, things have grown darker. Late in December, in a new filing, the U.S. Attorney’s Office for the Southern District of New York alleged that Cahill has “extensive ties to organized crime,” citing his frequent meetings with La Cosa Nostra and Serbian mobsters.

https://nlpc.org/2021/02/16/55061/

Him Buddy Leah and Jimmy Coonan and whoever the boss of the gambinos was at the time were partners in Marine

Mileta Miljanić, a Bosnian-born U.S. citizen, is a wanted man in Italy and faces arrest if he so much as changes planes there. He was once the bodyguard of the then Serbian president Slobodan Milosevic.

Bosko was part of a crew out of Chicago who were convicted or pleaded guilty in 1979 in the bombing of the Yugoslav consul’s home as well as a plot to bomb a Yugoslavian club in Chicago.

Seen this a couple weeks ago.His brother and his brothers partner,(believe his name was Buddy Leahy) had paid Coonan and Featherstone to kill another union guy.And if not mistaken one of those guys were either in the car when a young Coonan killed Morales and Carnelstien(not sure on that spelling)way back in 1966.They found Coonan in one of their apartments or something as well when arrested.Not sure how those guys avoided life I guess they weren't interested in them.

This guy apparently runs a cartel called group america.
group america drug gang
Alot of good info on that site.

Was bosko the one time leader of the westies

Bosko was indeed boss of the westies but also deeply rooted in the Serbian mafia.