No conspiracy theorists (since virtually all the theory has been diluted out of conspiracy theory these days) ever discuss the next logical question, so I'll bring it up: why did he assassinate her?

And yes, an assassination it was. As pointed out, he lay in wait, there were no exigent circumstances, there was no previous connection between the two, etc. He also seemed to have no fear of legal repercussions for this very public act, Note that the sponsors barely covered their asses with lame and staged legal repercussions.

There's another tell-tale sign in the incident which I will also bring up. In this high stress and chaotic situation, when the gunshot--which must have been deafening in the tight space--rings out... no one reacts. No one hits the deck, or ducks, or runs off, or even looks around.

Do I think this means the gunshot and the murder were fake? Absolutely not. A real event took place in the context of a larger scene. If you see Torvald knock out Nora's teeth during "A Doll's House", that doesn't prove it's fake even though it's up on a stage in a theater.

Much more to be said, of course, but there's not much point since the discussion has been totally derailed long before this point.