I'd be surprised if Ray was responsible. The reveal is too early.
I agree here, In a typical murder mystery, there's lots curves thrown, right to the very end. In fact, since the finger has pointed to Dr Light and Ray, odds are it's neither of them!
I'd still like to see the ubergreat Batman and the JSA braintrust be totally WRONG, and only Ralph can put all the pieces together, and Ralph and the mastermind die together, witnessed by the JLA, who now confirms that Ralph WAS the world's greatest detective, not Brucie.
Ralph's usefullness as a character died with Sue. It's poetic justice if he dies avenging Sue's killer.
