(CNN) -- The chief prosecutor in the murder trial of Oscar Pistorius accused him on Monday of "tailoring" his version of how he killed his girlfriend, as the grueling cross-examination of the track star went into a second week. 

Prosecutor Gerrie Nel has accused the athlete of hiding the truth about the death of Reeva Steenkamp, whom he shot last year through a closed toilet door in his luxury home in Pretoria, South Africa. 

His questions have sought to undermine Pistorius' reliability and credibility and to portray the Olympic and Paralympic athlete as someone who was inventing his version of events to suit his story. 

Nel, known in South African legal circles for his bulldog-like approach to questioning, has gone through minute detail regarding the early hours of Valentine's Day 2013, repeatedly challenging the double amputee over his actions that night. 

On Monday, in yet another intense scrutiny of his story, the prosecutor again tried to exhaustively highlight apparent inconsistencies between Pistorius' bail application and his testimony in court to show he is "tailoring his evidence" to suit the defense case. 

"I am going to point out to you how improbable your version is," Nel told the runner, who sat immobile, staring ahead at the judge as he answered questions. 

The prosecution's argument is that Pistorius shot Steenkamp intentionally after a heated argument. Pistorius does not deny shooting her but insists that he mistook her for an intruder. 

"I did not fire at Reeva," Pistorius told the court, his voice breaking, causing a second brief adjournment in the day's proceedings so he could gather himself. 
what year?
2013