Killing him would be like shooting themselves in the leg , it would be over for them , that would generate so much heat on them , he is less of a threat alive than dead.
He isn't on any hit list. Prosecutors and politicians nowadays like to claim they're being targeted by organized crime to inflate their ego.
yes he isn't on any kill list, they can't do it and they know it, there are not the 1980s/1990s anymore, Cosa Nostra wanted to kill the prosecutor Di Matteo but police stopped the plan in time, it's almost impossible today with all cameras and police surveillance