Tommy killed "Foxy",(Ronald Jerothe) and "Bats",who were both Gambino guys."Bats" was a made guy,I'm not sure about "Foxy".

Since there was no concrete proof that Tommy was the shooter,the Gambinos couldn't whack him without approval from the Lucchese Family. Even though Tommy wasn't made,it would have been a major disrespect to Paul Vario.

The last straw came when Henry was locked up and Karen began an affair with Paulie. One day,Tommy came to Karen's house and tried to seduce her. When she resisted,he attempted to rape her.

When Paulie found out,he contacted the Gambinos and basically said that he had new evidence that Tommy killed "Bats",and that he would OK a hit on Tommy.

Since in effect,Paulie was doing the Gambinos a favor,it is within the realm of possibility that he made it clear that it was Tommy,and Tommy alone that was the guilty party.

Tommy was nothing but a major pain in Paulie's butt for years,and he probably figured that Jimmy and Henry would continue to be ferocious earners whether or not Tommy was with them.

The fact that Paulie allowed members of another Family to hit one of his guys just goes to show how little respect he had for Tommy.

The actual Gambino shooter is not known for sure,but Tommy Agro always claimed to have done the deed.
According to Henry Hill,John Gotti did the hit,and because he was a close friend of "Bats",made sure that Tommy's death did not come slow or easy.