The reclusive Fiorello has long been thought to be behind the assassination of Gambino family associate Anthony "Clams" Opstrepo an incident that sparked an inter-family war which resulted in the murder of Robert Fiorello, he only son of the alleged boss.
Kahtlustatakse, et eraklik Fiorello on Gambino perekonnaga seotud Anthony Merikarp Opstrepo mõrva taga. See intsident oli perekondade vahelise sõja ajendiks, mis päädis väidetava bossi ainsa poja Robert Fiorello mõrvaga.