From reading the book about Leonetti the one thing I thought showed some of Scarfo's betraying ways was back in the Falcone trial.Right before the verdict I think one of the lawyers called them all together and he said to Yogi Merlino something like if you severe yourself from Scarfo and Chuckie you have an excellent chance of walking.In the book it said Scarfo looked at Yogi and said its your call [almost implying that if you do we understand].Instead Yogi decided to take his chances with the boys saying something like were all in this together.Luckily they were still found innocent.I'm not sure if I told that right but my point was by Yogi hanging with them made it easier for Scarfo.Anyway I thought that Scarfo would have always remembered that,but later on it said that he wanted Yogi whacked,not just demoted to soldier.