I was under the impression that here, like the states, the getaway driver outside is also guilty of first degree murder if the hold up man killed the store clerk, even if it was accidental but during a planned crime like a robbery. If that were the case I would say that they would both definetly be found guilty of first degree murder through any of the three different versions heard in court. But someone posted recently that this is not true here in Canada, so I'm not sure if that has been debated and researched yet. But if that is the case, the crown had to make it appear as if was a murder planned by both sides in order to get a first degree conviction. Again, I haven't caught up so I have no idea if the law on this was hashed out here or not yet, so of course it's my opinion only.
I also found the thought of fireside furniture and sausages photos disturbing and considered them as possible damning premeditation before I saw them. I am not pro-MS by any means, but I honestly think that the furniture photos were of something MS wanted to steal, they are unique and I image the bench aat least is very expensive. And I think the sausage was just a lame joke, 'look, my lunch looks like a high five.'