So if he didnt shoot/murder her... who did?
....I have no idea! But just because no-one else is a suspect at this moment in time, doesn't mean or prove that he, Oscar Pistorious, committed the crime. I'm not claiming he is innocent - I am merely trying to bring some fair balance to this discussion.
It's a jolly good job that there are courts, otherwise the trees would be decorated with dead bodies hung all over them by the angry mob.
A court will decide according to the known information presented before it for judgement.
Until then we can speculate and enjoy solving the crime as if it was a TV series, but it is not for us to make the final judgement.