I can't speak for others, only myself... I've never wanted him to be guilty. I'm incredibly sad that a man who had so much inspiration to share with the world pissed it away. Don't be mistaken, he did piss it away all on his own.
His vulnerability and fears do not allow him to act him more recklessly than is reasonable. I don't deny his fears, I believe they are absolutely real. But he intentionally aimed to kill whomever he thought was in that small enclosed room without provocation according to his own statement. A decent person who appreciates human life does not act that recklessly with weapons that are loaded with hollow point bullets.
It's really not about wanting someone to be guilty... it's more about looking at the terrible destruction that he has caused and holding him responsible.
If he knew that it was Reeva in the toilet, then yes he deserves whatever punishment meted out to him. You say he shot to kill whoever was in the toilet, without provocation. I think the fact that an intruder is in someone's toilet is ample provocation, especially in SA where the crime and gun culture is way too high to feel safe in your own home. There was a door between them. Firing one or two shots does not guarantee that the intruder has been incapacitated. Was OP to hang around waiting to see if the intruder had a gun? An intruder with a gun and 2 good working legs. I think there are people out there who want him to be guilty just for the hell of it. I just feel we don't know enough yet to pass judgement. Hopefully the truth, no matter what, will come to light.