The parents of Reeva Steenkamp who was shot dead by Oscar Pistorius have spoken out about their need for answers surrounding their daughter's death.
June Steenkamp says "there is only one person who knows what happened" that night in February when Ms Steenkamp was killed.
Their comments came a day before Pistorius appears in the dock at a pre-trial hearing in Pretoria.
The 26-year-old double amputee and six-time Paralympic sprint champion has been charged with premeditated murder, but claims he shot 29-year-old Ms Steenkamp in the early hours of Valentine's Day at his Pretoria home after mistaking her for an intruder.
He says he mistook her for an intruder and shot her four times while she was in the bathroom. Prosecutors say the killing was premeditated but they must provide a motive to have him convicted of premeditated murder.
In a TV interview, Mrs Steenkamp speaks of her desperation to know why the shooting took place, and discusses the guilt she and her husband feel about not having "protected" their daughter.
"Why? Why did he shoot her? I want to know why he shot her. Because she must have been so afraid in the toilet, and somebody's firing [a] gun, bullets through the door.
"And how terrified and already one bullet had hit her so she must have been in severe pain also, and I just feel why couldn't I have warned her, or known something about this person – that they could be capable of doing something like that.
"Because he shot her 'til she was dead. Shot her 'til she was dead and I want to know what happened. Why?
"How did she end up with a person like this? Who could shoot her? I want to know. We don't know what happened. There is only one person who knows what happened," she told the programme Why Did Oscar Pistorius Kill Our Daughter?