I feel a bit sorry for OP regarding the nightclub incident. I'm guessing he thought he would be ok because he was in a VIP section. I don't doubt that the man involved deliberately targeted him so he could sell a story to the media which imo is pretty distasteful. No-one has to try to engineer stories to make OP look worse than he is. The world already knows what he has done.
I'm not sure what I think about the tweets. On the one hand, it looks as though he's working through what life means for him now and trying to convince himself of his value. I think he has to reconcile the two different versions of himself (pre and post murdering Reeva) to be able to take responsibility, face his punishment and be rehabilitated.
However, as his PR, I would have told him to step away from the computer, changed his twitter password and not posted anything except an official response once the verdict is delivered.
Here's the link to The Guardian article about Roux possibly paving the grounds for an appeal:
www.theguardian.com/world/2014/jul/08/oscar-pistorius-lawyers-hint-appeal-witnesses-refuse-testify-media-coverage