(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. 
Who is on trial for murder?
who was he accused of killling?
who was she to him?
what was his profession?
Did he tell the truth about how he killed her?
who did?
who is he?
how did oscar kill his girlfriend?
was he an olympian?
was he a paralympian?
where is Nel from?
what animal was he compared to?
what day did the killing occur?
what year?
how many limbs did oscar have removed?
who did Oscar say he thought he was shooting?
Did his voice break?
was it the first adjournment?
was it a long one?
what city was reeva shot in?
Oscar Pistorius
Oscar Pistorius
Reeva Steenkamp
Reeva Steenkamp
his girlfriend
his girlfriend
track star
track star 
accused the athlete of hiding the truth
accused the athlete of hiding the truth
Gerrie Nel
Gerrie Nel
chief prosecutor
chief prosecutor
shot last year through a closed toilet door
shot last year through a closed toilet door
Yes
Olympic
Yes
Paralympic
South African
South African
bulldog
bulldog
Valentine's Day
Valentine's Day
2013
2013
two
double amputee
an intruder
an intruder
Yes
voice breaking
No
second brief adjournment
No
brief
Pretoria
 Pretoria