Well,in view of the list of undisclosed evidence,etc etc and JB's " behaviour " and general so-called attitude,I'd have said he was innocent of any charges of murder because he simply had no idea what happened that night and made no preparation to defend himself as a criminal would have done.
Well, perhaps we should endeavour to look at his attitude from a perspective of anyone rather than him.
I reckon, that because I see everything as being a grey area, that I'd be far more likely, than you, for whom things are only black or white, to make allowances for someone's behaviours. However, had I been questioning Jeremy and experiencing the behaviours he exhibited, I most definitely would have doubted his innocence. It appears to me that he was (deliberately?) discourteous in the extreme. That he appeared, with his thread pulling, tuneless humming and frequent "No comments" to be sticking his fingers up at those who were doing their job. As an entirely innocent person, he could have AFFORDED them courtesy and his full attention. You may believe JEREMY is innocent but if ANY other person had responded in the way he did when being questioned, I wonder if you'd have given them the same benefit of doubt.