Yes, what happened was that Cardi didn't feel he was being paid enough to to his job working in Marcy's Crew. He complained about it to Willie. Willie then asked Cerone's permission if he could have Cardi work for him as a juice Collector in the Elmwood Park Crew. Jack agreed and Cardi then went to work under Willie in his juice crew.

Well, Cardi still wasn't satisfied after awhile and was in no position to move up and get made to run his own Franchise.
In Chicago, that took years to happen.

Cardi became more impatient and started to deal directly in drugs on the side. It wasn't long before Cardi got into trouble and had to go to prison for a couple years. It was his first offense.

Two days after Cardi got out of jail, He was at his wife's hot dog place that she ran to make money while he was gone. Two Guys entered the joint wearing ski masks and shot Cardi to death.

It was an Outfit lesson. Do not deal directly in drugs and do not do anything on the side without permission from your Boss. They actualy let Cardi do his short time and then they killed him.

Cerone gave the order. There was nothing Willie could do to save his nephew.