The reason E snitched on Nalbano was over a large package of money that either was cut open and had the money stolen from it en route or that Nalbano just sent him an empty package to begin with. It was a bad move on his part to snitch on Nalbano though, because Nalb just snitched right back on him after he got arrested. So E pretty much resulted in his own arrest by snitching on somebody else.