Only just found this thread, so excuse me if I repeat anything!
Reasons for a possible motive might be the fact he was very intense and jealous about Reeva, according to a couple of articles. Don't know how much has been exaggerated by journalists twisting words, but here are some excerpts.
Oscar Pistorius 'was told to back off from Reeva Steenkamp'
Oscar Pistorius subjected Reeva Steenkamp to such intense emotional pressure in the early days of the relationship that her best friend's father was forced to warm him to "back off".
http://www.telegraph.co.uk/news/wor...as-told-to-back-off-from-Reeva-Steenkamp.html
Now, Reevas friend, Maddie Sims, is opening up to People magazine, explaining that while Oscar definitely loved Reeva he was insanely jealous.
A man was staring at her one night when the couple was out with friends, Maddie said. Oscar stared him down with a very angry look on his face.
He also was very focused, very intense, and very assertive, according to Maddie. He would get angry with laid-back Reeva if she was late to meet him, if she asked a waiter at a restaurant too many questions or whenever she wore her hair in a ponytail or dressed too casually in his mind.
Many things that made Oscar a great athlete made him difficult to live with, Maddie told the mag.
http://hollywoodlife.com/2013/02/20/reeva-steenkamp-oscar-pistorius-relationship-abuse/
He sounds extremely controlling and impatient as well, if something as innocent as asking a waiter 'too many questions' or dressing too casually made him angry.
Not saying jealousy is why he killed her, but it's a possible motive. I don't honestly believe his story at all. It's so ridiculous and makes absolutely no sense. The biggest problems I have with it are these:
1) He claims to have been paranoid about his safety and was 'overcome with terror' when he heard the 'burglar' - and yet he left his balcony doors open while he slept? And also his bathroom window with ladders that he said he knew had been left outside? How does that tie in with being paranoid about safety? How many break-ins has his complex had since he lived there? I think I read it hadn't had any in 10 years.
2) When he shouted at the 'burglar' to get out of his house... why didn't Reeva respond from wherever she was? If she was really in the toilet, then how come she didn't yell at him to stop shooting once he'd started? At no point does OP say that Reeva ever made a sound, from the moment he got up to close the balcony doors to the moment he shot her dead. Does that sound feasible to anyone?
3) He claims she was still alive and breathing when he carried her downstairs, which is only his version of events. But if she really
was still alive, then he can't have killed her with the first shot - so again, how come she didn't scream at him to stop shooting?
4) His brother and lawyer were at the house looking for the memory stick before the emergency services even got there. Now why on earth would details of his offshore accounts be a priority immediately after Reeva was killed?
5) He must have had other people stay over at his house before. What happened when any of his guests got up to go to the toilet in the night. Did he automatically assume it was a burglar and shoot them dead?? No! So why did he assume Reeva was a burglar but no one else that had stayed over?
Too many things don't add up, and I sincerely hope justice is done for Reeva Steenkamp's family. So far, OP's family have been talking about how this tragedy has completely changed
their lives, while as an afterthought, acknowledging that Reeva's family have suffered a terrible loss. This is about a young woman whose life ended in the most horrific of circumstances, and OP and his clan seem to have forgotten that in their quest to garner sympathy for themselves.