In Giovanni's Ring, it describes how Charles Majuri was in line to become boss after John Riggi. That investigation ended in 2015, just before Riggi died, so the book doesn't confirm whether or not Majuri actually ended up taking over. Either way, one could argue it certainly still makes Majuri the most likely candidate for the current official boss.

At the time of the investigation, Majuri was acting boss of the family and the individual referred to as 'Horse' in the indictment. The street boss 'Milk' was Joseph Merlo Jr. In Giovanni's Ring, Merlo is referred to as 'Luca Vitale.' Merlo died a couple of years ago.