In the news article they mention that Oct.3, 2015 there was an attempted murder on one of Scoppa's men.

I looked at the timeline and four days prior on Sept. 29, 2015 there was a molotov cocktail at Leonardo Rizzuto's law office.
I wonder now, having read this article, if the attempted murder was a retaliation from the Rizzuto's.I know it is speculation but it's something to think about. Most of 2015 all was quiet,I thought they had finally reached a peace agreement but in September when Marco Campellone got shot all hell went loose and they have been warring again ever since then.