<RSBM>
The point was - if an intruder had been found behind the door and Reeva had in fact been in the bedroom, would people have been so ready to call murder and demand a long jail sentence? I don't think there would have been the same weight of support for a DE finding, which leads me to ask whether, for some, the call for DE and a long sentence is in fact just a 'next best thing ' for those who believe it was DD of Reeva. <RSBM>
Here's how I see this scenario:
If an
unarmed intruder had been found behind the door, I would fully expect Oscar to still be charged with DE,
since he used lethal force in an unlawful manner and shot with the same intent to kill, but I would also expect him to
probably be given a verdict of CH, since he was at least PROVEN justified in his assumptions about an intruder.
Note: it probably does not matter if the intruder was armed or unarmed since Oscar would not have know either way, but if he had been armed, it would add another element that would help justify Oscar's assumptions about the intruder. It still does not alter the lawfulness of Oscar's own actions.
In his actual situation he had no such factual basis to fall back on to help substantiate his assumption it was an intruder. Yes, he
could have been correct, but it was PROVEN he was not, and
IN BOTH CASES he was not acting in lawful self-defense.
Given the climate of frequent home invasions, and if it was factually proven to be the case that there was an actual intruder, I suspect Oscar would have a very sympathetic case for a finding of CH under those circumstances.
Alternately, given the climate of an extreme number of femicides, and given a problem of increasing numbers of gun owners feeling entitled to shoot first and ask questions later, along with the
fact that Oscar was not legally justified in acting in PPD, then the court is obliged to evaluate his actions in terms of DE.
As I see it, a key difference in the alternate scenario you present is that he was proven to have a factual basis for thinking he would be in a self defense situation. As you stated earlier though, he still acted too hastily and was not acting in lawful self-defense. He did, however, establish a factual basis for his belief, which partially justifies his actions.