Well @realmobtalk7 is smart, when he was going to the Merlino trial he apparently made friends with Merlino and Borgesi, his quote on who the snitch is sounds just like something Merlino would say

"McGurn likes you, so I make you. So you are now one of us, if you fuck up, we take it out on McGurn. He is your sponsor. Fuck up, it's his ass. You work in his crew, he is your capo."