Michael Franzese never cooperated with the government, so isn't a "rat" when came out of prison wrote his book Quitting the Mob, that made him famous, so even if he left the Colombos to the family, befitted don't to kill him, regarding his father, in the history channel inside the american mafia Michael says his father during a meeting where he had been accused of stealing money of the gasoline scam in danger be whacked, the father didn't defende the son and was ready at whacked his son.

it was planned to kill him, and certainly Junior knew it his father died someone would take seriously the idea of killing him especially after the bad figures who did make the Gambino (loss of lists of potential men of honor, the gift list for his wedding, etc.) so I think that the idea of getting rid of a Gotti, have enjoyed the family.

About Frank Minucci he was an associate and certainly for an associated $ 250,000 are more than enough to be left in peace