IMO NEL already has culpable homicide from yesterday if not before, but the fact he today got OP to admit that he went towards the danger to confront the burglar, stating he wanted to stand up for himself, imo is well on the way to murder.
Just because OP won't admit in words he intended to shoot at the intruder, obfuscating around shooting at the door, shooting by accident, not knowing why he shot, etc., imo will not clear him, because even were OP to convince the judge that he genuinely believed he and Reeva were about to be attacked the fact he went towards the danger gun in hand and safety lock disengaged, is contrary to SA law because to claim self defence an attack has to be real and imminent not imaginary, and before resorting to shooting you are obliged to take all possible measures to avoid confrontation. So I think it looks pretty grim for OP because as Sky's SA lawyer for the day just noted, and as I've been saying since I came here, it is of no importance who OP shot at just that it was a human being and by admitting he went to confront the intruder which was not his last resort he has turned himself into the aggressor to boot.
That said, things don't always work the way they seem so it would not surprise me if the judge, when weighing OP's state of mind, his disability, etc. and the reasonableness of his response to a perceived intruder, finds an extenuation to reason a reduction from murder to CH, even though it looks, feels and smeels like murder by transferred intent a possible result already contemplated in the charging doc where it states: "An error in persona will not affect the intention to kill a human being". SA's constitution has one of the strictest interpretations in the world in respect of right to life, even that of a burglar, and OP's acts and testimony are, the way I see it, in full frontal collision with that right.
S. Africa sounds like a nightmare place to live. It's not safe even inside a gated community, you have to bribe the cops, the cops will help themselves to what they want if you allow them in your house, you must do everything possible to preserve the life of an intruder bent on your destruction, you have to account for every bullet and the placement within your house of every gun and magazine. Time for every sane person to move out, if you ask me.