Pistorius appears to have a history of paranoia and a penchant for guns. Last year, he tweeted: "Nothing like getting home to hear the washing machine on and thinking its an intruder to go into full combat recon mode into the pantry! waa [sic]".
During a profile on the sportsman, who competed against able-bodied athletes at last year's London Olympics, the British Daily Mail reported of a baseball and cricket bat behind Pistorious's bedroom door and a "revolver at his bedside. A machine gun by his window".
Reminds me a bit of music producer Phil Spector, who had a long standing habit of pointing guns at people (often while drunk out of his mind) to force them to do what he wanted. He did it in recording studios too. People thought it was kind of cute. Then one day he shoved a gun into a woman's mouth when she refused his sexual advances, and blew her brains out. I am not against owning guns, but some people should have them taken away from them.