In 1984, a young Michael Mancuso fatally shot his wife and left her to die on a park bench outside the Jacobi Medical Center in the Bronx. Today he is the boss of a family. My question is how come there wasn't any pushback from other mobsters in regards to his becoming a boss? Even within the mafia, I would've thought something like this would make someone persona non grata, or at the least, restrict them from gaining power.

Has this ever been used against him by rivals?

I invoke my right under the 5th amendment of the United States constitution and decline to answer the question.