The 'ndrangheta was preparing an attack in the Turin area with hand grenades: this is the reason why a 61-year-old Sicilian, after presenting himself as a former member of "Cosa Nostra", decided to collaborate with the DDA of Piedmont, making declarations then used in the Carminius investigation on the presence of the clans in Carmagnola (then linked to the arrest of the regional councilor Roberto Rosso for exchange vote).

"I knew - said the repentant at the beginning of 2018 - that people have got hand grenades to use for an attack and I don't like this thing and I want to avoid it". According to the 61-year-old, the bombs (six in all) had been brought in from Calabria "to use them against a person who created problems" .

In the meantime they had to be kept in Carmagnola. According to the repentant, in the area " 'ndrangheta and Cosa nostra they made a pact to work together without bothering each other".