Oscar's bid for gun arsenal is revealed as court is shown bloody scene where he shot Reeva - to horror of her mother

Oscar Pistorius was in the process of buying six guns at the time he killed his girlfriend, his murder trial heard today. Gun licenser Sean Rens said the Paralympian had placed an order for three shotguns, two revolvers and an assault rifle which he cancelled a month after the shooting. He also testified that Pistorius had once described how he drew his gun and went into 'combat mode' after hearing a possible intruder at his home months before shot Reeva Steenkamp. The noise turned out to be a washing machine, the High Court in Pretoria heard. Mr Rens, manager of the International Firearm Training Academy, said he had many conversations about firearms with Pistorius, who he claimed had 'a great love and enthusiasm' for guns. Mr Rens said he met Pistorius in 2012, trained in a gun range with him and that the runner was seeking to collect guns. In one conversation, Pistorius described how he was startled by a noise at home and decided to clear the house by drawing his gun and checking rooms, according to Mr Rens. 'He went into what we call "code red" or combat mode,' he said. 'When he came to the source of the noise, it was the laundry or something.' Pistorius had tweeted about the incident in November 2012: 'Nothing like getting home to hear the washing machine on and thinking its (sic) an intruder to go into full combat recon mode into the pantry!' The tweet was later deleted from his account. Pistorius said he killed Miss Steenkamp by accident before dawn on February 14, 2013, shooting her through a closed toilet door after mistaking her for an intruder in his home. Prosecutors say he killed her intentionally after an argument. Mr Rens also read out a gun licence test passed by the track athlete. Prosecutor Gerrie Nel asked Mr Rens to describe how Pistorius was quizzed on how to handle a firearm in various scenarios, for example when two unidentified men approach the house of a gun owner; then when they break into the house, begin to steal belongings and order the gun owner to leave; and if the men threaten to kill the gun owner, who is behind a security gate in the house. In each case, Mr Rens said, Pistorius correctly answered 'no' when asked if it was OK to fire at the men. He correctly said he was only entitled to shoot at them if they advanced on him with a gun, according to Mr Rens. Pistorius also made clear that a gun-owner should never shoot unless he was knew what he was shooting at, and what lay behind the target. 'Know your target and what lies beyond,' Mr Rens said, quoting Pistorius's answer. The prosecution was trying to show that was aware of firearms and self-defence laws that say you cannot shoot at an intruder unless your life is in danger. Pistorius says he fired because he thought he was under threat. Mr Rens said he was introduced to Pistorius in May 2012, a few months before the runner made history by competing at the London Olympics.