Somebody shouldve told that to bobby glasses, how do you turn down a deal for 12 years on a double murder rap?, He must've thought he had a really big chance of beating the case. Now given it wasnt exactly an iron clad case, but there were still multiple eye witnesses, that plea deal basically had a fucking bow on it.
He was blinded by Junior's mistrials. Which, if Curtis Sliwa wasn't so God-awful unlikeable, wouldn't have happened (not the first mistrial, anyway. That one was 11-1 to convict, and the one holdout admitted to hating Sliwa).
Plus, Junior was a little more sympathetic and likeable as a defendant. Vernace just came across as a career goon.