Yes Mertol, he did look smug. If you listen to Bews in one of his interviews, he also repeats a version of this mantra. And when Sparkfilms states that Bews intimated to him that there may have been third party involvement, as opposed to JB pulling the trigger, I am absolutely certain that this is a desperate attempt to reach a 'fall back' position, in order to shore up remaining negative public belief in the Bogeyman - Bamber.
It screams out 'yes well, maybe the case against him is absolute shite after all... but that doesn't mean it wasn't him!'.
Desperate.