Hate to add to speculation, but what are the chances Crea ordered this? It's looking like he will be in jail for a long time. What does he have to lose.
Why what’s the conflict between them ?
Not sure, though it's been discussed that the Lukes in the Bronx despise the Bronx bonannos (see Enzo the baker)
Enzo the Baker was shot by Michael Meldish and Terrence Caldwell, without the permission of the Lucchese hierarchy. Meldish did it as revenge against Mike Mancuso. It was one of the main reasons for Meldish's demise. Stagno's attempted murder points to no conflict between Crea and the Bonannos. In fact, it actually shows that the Luccheses were willing to whack a guy to avoid disrespect/retaliation from the Bonannos, among other things.
