Darren Fresco said that he had been with him on two occasions when a gun had been fired in public.Mr Pistorius once accidentally fired a gun in a restaurant but made him take the blame, Mr Fresco said.The Paralympic athlete denies intentionally killing his girlfriend Reeva Steenkamp and says he mistook her for a burglar.Mr Fresco said that on another occasion, he was driving when Mr Pistorius fired a gun out of a sunroof after police stopped him.He said Mr Pistorius became angry after a police officer handled his gun, which was on the back seat of the car."You can't just touch another man's gun," said Mr Pistorius, according to Mr Fresco.Earlier Oscar Pistorius' defence team questioned a pathologist's finding that his girlfriend had eaten less than two hours before he killed her.This contradicts the athlete's account that the pair had been in bed for several hours before the shooting.Dr Saayman said Ms Steenkamp had been shot three times, in the head, hip and arm but that he did not know the order of the injuries.If she had been shot in the hip or arm first, screaming would have been expected, he said.Neighbours have previously said they heard a woman screaming but Mr Pistorius' defence lawyers argue that the athlete was the only one who screamed.When pressed by defence lawyer Barry Roux, Dr Saayman said that there could be an error of "an hour or two" in his estimation of when Ms Steenkamp last ate.Judge Thokozile Masipa has ruled that Tuesday's post-mortem examination testimony could be tweeted but not broadcast live.The judge had banned live twitter coverage of Monday's testimony because of its graphic nature.Mr Pistorius has appeared distraught as the events of 14 February 2013 have been recounted in the court in Pretoria.The state is seeking to convince the court that Mr Pistorius and Ms Steenkamp, a 29-year-old model, reality TV star and law graduate, had an argument before the athlete fired the shots that killed his girlfriend.There are no juries at trials in South Africa, and his fate will ultimately be decided by the judge, assisted by two assessors.If found guilty, the 27-year-old, a national sporting hero dubbed the "blade runner" after having both lower legs amputated, could face life imprisonment.(BBC)ANN.Az