thanks for your reply. you said: there have been plenty of murders within Mafia families, year after year, usually over control of that family. but why since 70s/80s there were no boss, underboss or capos get whacked by their own men? i'm talking men like galante, castellano, bonventre, etc. the list that @Dellacroce gave here pointed that many of the victims were mob associates, not the top guy.
any reason why they don't do that anymore?
You're right, there aren't as many mob hits as during the 1970'80's. The main reason is the feds are better at solving murders through forensics and informants. There was a moratorium on hits in the 1990's due to so many high ranking members being sent away for life. There are also fewer wiseguys out there these days. Most of the families peaked in size during the 1970's and early 80's after the books were opened. The huge numbers of wiseguys plus the drugs flooding the streets resulted in a wild west type atmosphere.