Yes, I've been following it some; BBC World have had a good deal of reporting from the trial, sometimes live for hours. There was a good deal of talk about Pístorius's gun obsession and sometimes careless and gung-ho handling of guns, and the possibility (the claim) that he and his girlfriend had an agitated quarrel over the hours before the killing. Of course he denies they had any kind of argument or were on bad terms and there are no eyewitnesses. Thinking of it, the haze around just what happened and the lack of eyewitnesses reminds me not just of O.J. Simpson but of the death of Jimi Hendrix, that one's also had a veil of hazy circumstances around just what happened, when and why (see Jimi Hendrix: The Final Days by Tony Brown for a good dig-through of the case). But in that one the police and forensics people were flat-out uninterested at the time, and the media, even the manager, happy to write it off as "just another accidentally dead rock star" - in the Pistorius story the cops were on the scene very soon after the shooting and there's been great attention poured into trying to get the technical facts and the witnesses' accounts right, scrutinizing them.