In my opinion, it's an entire list of improbabilities that have to occur to make Oscar's version possible which makes it rather impossible. On their own, each item can be debated as 'not impossible' but as the list grows it becomes less likely. That's how this case will be decided as well. Even the reasonable person test will be based on the entirety of the case. The more the subjective factors, the more the defendant should have foreseen the consequences and the less likely a putative self-defence claim being successful becomes. It isn't limited to him believing his life was in danger and whether that's reasonable or not. A great deal will be weighed to make that determination.
Please pardon errors as posted via Tapatalk with a less than stellar user.
While there are many things in his affidavits that are improbale, perhaps we should focus on those that may be impossible or virtually so.
Among the witnesses that the State could have brought are the manufacturers of the 2 guns in question, and they could have stated that what OP descibed in both the Reeva killing and the Tasha's event are impossible via their guns. Maybe a physicist or two could also have addressed the issues.
So can we address what is impossible in his statements or testimony?
Or even in his other incidents too. Like the boating accident that OP claims was due to the sun getting in his eyes, when witnesses said it occurred after sundown IIRC.