Think casso admitted to. 37 murder conspiracy s. On top of taking over Roy demeo crew after they killed him. Did casso admit to the feds he supervised the hit on demeo that be a cool fact. But probably demeo or jimmy coon an or jimmy Burke for gangsters after the books were open in the 70 tys. Steve flemmi in Boston or martorano are serial killers. Be tter question goe stste by state. Read that guy Richie the boot killed a lot or would dispose of bodies