sorry man, how could i doubt this article from the Vitale's n massino's summations....

LoPresti was the person running between NYC-Mtl, not Ragusa. Ragusa was a small time drug runner peddler, in montreal at that time.
LoPresti was the other person in the closet. He couldn't stand trial from the grave, as Massino put it.
Theorists, such as this article, want to believe it was Ragusa to close the case, ala Donnie Brasco, who figured, it was a cleanup crew who assisnated the upstart captains in a basement (as witnessed in a blockbuster, star-studded hollywood cast), over a move into the florida everblades lol

Ragusa was small-time to NYC standards.