The prosecutor in the murder trial of Oscar Pistorius ended his five-day cross-examination of the double amputee track star on Tuesday with a stark summary of how he shot his girlfriend, insisting he killed her deliberately after an argument. “You fired four shots through the door whilst knowing that she was standing behind the door,” said prosecutor Gerrie Nel, known in South Africa as “The Pitbull” for his hectoring and relentless style of questioning. You fired four shots through the door whilst knowing that she was standing behind the door Prosecutor Gerrie Nel “She was locked into the bathroom and you armed yourself with the sole purpose of shooting and killing her,” he continued. “That is not true,” said the 27-year-old Pistorius, who faces life in prison if convicted of murder. Pistorius broke into tears on many occasions during the questioning, and at one point retched into a bucket on the witness stand after being shown grisly pictures of Reeva Steenkamp after the shooting on Valentine’s Day last year. Watch: Prosecutors conclude gruelling Pistorius cross-examination He insists he killed the 29-year-old law graduate and model accidentally after mistaking her for an intruder hiding behind a closed toilet door. On Tuesday the athlete’s voice quivered as he recounted how he was “overcome with terror and despair” on finding her bloodied body slumped against the toilet after he broke down the door with a cricket bat. “I was broken, I was overcome, filled with sadness,” he told judge Thokozile Masipa, adding he urged her to hold on while he sought help from neighbours at his high security Pretoria residence. The trial has drawn wide interest both in South Africa and abroad, with opinion divided as to whether Pistorius did or did not mean to kill Steenkamp. Before the shooting, Pistorius, whose lower legs were amputated as a baby, was one of South Africa’s most revered sportsmen, admired for his prowess on the race track using carbon-fibre prosthetics that earned him the nickname “The Blade Runner”.