AMC Fans -- Is it possible that EMMA accidentally shot STUART?

Apparently Emma shot Stuart is a popular theory. Mine isn't - I think Adam shot Stuart by accident while under the influence of the drugs, that he Stuart was someone else come there to shoot him, that Annie saw what happened (so did Emma), and Annie is protecting Adam because she wants to be Lady of the Manor. IOMO. Adam doesn't really remember what happened that night, but he knows that something did (besides just the fact that Stuart got shot), and that Annie knows what it is. This explains why Adam is keeping Annie around, and also why Annie insists on staying around.