First big RICO case that i remember was when they used it against the Hells Angels back in the late 1970's. The Angels actually beat the RICO charges. I think Tieri was the first big mob guy to go down on a RICO charge. The law was passed in 1970 but it took close to a decade or so for them to learn how to really nail these guys with it. Not too many guys that i can think of walk these days from a solid rico case.