I'd urge a little caution in rushing to judgement.

While your premise is plausible, and may well turn out to be the truth, it's just conjecture at this point.

Remember when news of Frank Cali broke how it was going to be this biggest mob hit in three decades? Turns out it was just a crank.

There could be any number of plausible suspects...we shall see. I'd personally cast doubt on a crime group hitting an EU head of government; they know the response they're going to get in kind is going to include scrutiny not just from law enforcement but from intelligence networks, NATO, the CIA, you name it. Is that really worth it?

One thing for sure: if your hunch turns out to be right and it is the N'Drangheta behind this, it will propel them all the further into the pantheon of elite organized crime globally.