Oscar Pistorius Must 'Pay for What He's Done,' Victim's Cousin Says

Oscar Pistorius attends the fourth day of sentencing proceedings in the high court in Pretoria, South Africa,

Oscar Pistorius must “pay for what he’s done,” and his apology to the family of the girlfriend he shot dead in 2013 was not sincere, a cousin of victim Reeva Steenkamp testified today.

Kim Martin’s testimony came on the fourth day of the athlete’s sentencing hearing, which is expected to end this week.

"My lady, I really believe the accused, Mr. Pistorius, needs to pay for what he's done," Martin testified before Judge Thokozile Masipa.

Martin said her family is seeking justice, not revenge, for the Valentine’s Day 2013 death.

"We just feel to take somebody's life, to shoot somebody behind the door who is unarmed, who is harmless, needs sufficient punishment," she said.

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Pistorius, 27, was found guilty last month of culpable homicide, the rough equivalent of manslaughter, in the 2013 shooting of his lover. The court is now hearing testimony in the penalty phase that will determine how much prison time – if any – that Pistorius will serve.

Two defense witnesses, a corrections social worker and a probation officer, said Pistorius should not be sent to prison and suggested house arrest instead. They said that Pistorius, a champion paralympic sprinter who relies on prosthetic legs for his mobility, would be vulnerable in prison.

Prosecutor Gerrie Nel has presented a muted case for Pistorius to serve time in prison. Nel, known as the "bull terrier" for his aggressive style, frequently made Pistorius cry during the trial.

The prosecution's potentially most dramatic witnesses, Steenkamp's parents, announced this week that would remain neutral and not take the stand. They also said they were dropping a civil suit against Pistorius. The announcement came after it was revealed in court that Pistorius has been giving the parents about $530 a month since he shot their daughter.

Zach Modise, the acting national commissioner for correctional services, testified today, defending conditions in the South African prison system. Previous witnesses testified that the country’s prisons are notoriously overcrowded and violent, putting Pistorius in jeopardy.

"We will be able to accommodate him," Modise said.

After the prosecution presents its case, closing arguments will follow before Masipa renders a sentence. Today marks Masipa’s 67th birthday.