Out of all of the captains, DiTullio had the biggest reputation for being a hitter. I remember reading info from one CI who claimed that DiTullio was exempt from paying tribute because of the amount of work he did. He taught Scarfo how to kill.
Testa was Bruno's closest ally in the 60's, after his falling out with Denaro. Similar to the Ligambi/ Staino situation in the 2000s.
Massi was caught having sexual relations with a young black guy and being the 'passive partner'.