Did Cicci implicate Michael? Yes...and no. Yes, he testified that Michael Corleone was the boss of the family--bad for Michael. No, he said he never got a direct order from him because "the family had a lotta buffiz." That was helpful. Recall that, near the end of GF, Cicci says, "Tom, Sal, the boss says for you to go ahead and he'll come in a separate car." That indicates that he did get a direct order from Michael that implicated him in a hit--Tessio's murder. But he didn't testify to that.