The last time it happened was when Nick Rizzuto was still alive. I think that attack in 2010 was a sign for him to step down. Could this have the same underlying message? If so, does that mean that the family (Leonardo?) is still in a position of power?
The previous attack, which was pathetically executed, happened on January 6, 2011, about two months after Nick Sr.'s mruder. See link to older article below.