Huey had a long term connection with the NY mob through Frank Costello and I never heard it had been troubled. New Orleans had the first and oldest Mafia outfit in the country so it did not have to have a hit authorized by the Commission.
T. Harry Williams’ definitive biography and the fictional
treatment “All the King’s Men” did not provide any light.
Of course, you know that the killer was immediately riddled with bullets from the bodyguards.
The New Orleans Democrat machine was tied to the Mafia tooth and nail, as it was in every big city. So your theory may well be the case.
Cermak was Bohemian, so right, Czech.
That happens a lot with hits. Kill the trigger man so he can’t talk. Lee Harvey Oswald didn’t live long, either.