Casso said in his book he used to commit robberies with DeCicco in their early days. Gravano said DeCicco started out under Failla, then Castellano took a shine to him and placed him Bilotti's crew to keep an eye on him. According to Gravano, Paruta did do jobs with DeCicco in the past, but became an associate of Gravano's.

Haven't heard anything about Vito Rizzuto being affiliated with DeCicco though. Unless there's some other mobster called Vito Rizzuto.