The Sollena case was the one Yogi and Ligambi were charged but the charges were later dropped. After Yogi flipped he told the feds that Joe Gambino told him he killed one of the Sollena's and one of his guys killed the other one. I think years later Naimo confirmed it after he also rolled.

Matteo and Sal Sollena were either nephews or cousins of Gaetano Badalamenti and were serious guys themselves.

Yogi also said Joe Gambino told him the Sollena's were killed because they stole money from the Gambino's and lost it at the casinos. They found Sal Sollena in the trunk of a car parked at a diner in Collingswood and his brother Matteo was found in another car trunk parked in Marlton NJ.