Oscar Pistorius trial: 'There's more to the story than everybody knows. Only Oscar knows', claim Reeva Steenkamp's family

Video: The parents of Reeva Steenkamp spoke to ITV's Good Morning Britain after Oscar Pistorius was sentenced to five years in prison

Reeva Steenkamp's parents, Barry Steenkamp and June Steenkamp sit in the Pretoria High Court in South Africa. (Phill Magakoe | Getty Images)

The parents of Reeva Steenkamp have said that they will never accept Oscar Pistorius's claim that the shooting of their daughter was a mistake.

Yesterday, Oscar Pistorius was sentenced to five years in prison for killing his girlfriend Reeva Steenkamp on Valentine’s Day 2013.

The South African athlete was cleared of murder but convicted of culpable homicide by Judge Thokozile Masipa on 12 September.

He has also been sentenced to an additional three years in prison, wholly suspended, on the second count of a firearm contravention.

Following the sentencing, Reeva's mother, June, appeared outside the courtroom in Pretoria and said that even though Pistorius may be out of prison in as little time as ten months' time, her family was satisfied with the court's decision.

However, in an interview on ITV's "Good Morning Britain", Mr and Mrs Steenkamp said they did not believe the argument that the killing of their daughter was an accident.

Pistorius' defence team argued that the athlete lacked a motive for the pre-meditated killing of Steenkamp and that the couple were in a loving relationship. Pistorius had shot Steenkamp believing her to be an intruder and therefore her death was a terrible mistake.

Asked whether they believed that narrative, June said, "No. No. There's more to the whole story than everybody knows. Only Oscar knows. Only Oscar knows."

June did reiterate that she was satisfied with the sentencing.

"We're very settled with the sentence. He’s got to pay for what he’s done, and it's not that we want vengeance or anything or him to suffer with his disabilities, but at the same time we feel satisfied that he will realise now that you can't go around doing things like that," she told ITV.