The Oscar Pistorius trial has heard from a firearm specialist who testified the athlete had good knowledge of the rules on gun use and dealing with intruders.Mr Pistorius said one could discharge a firearm if one feared for one’s life.Mr Pistorius denies murdering his girlfriend Reeva Steenkamp last year, saying he mistook her for an intruder.The prosecution says he intentionally shot Ms Steenkamp after an argument at his house on Valentine’s Day 2013.Sean Patrick Rens is involved in firearms assessment for licences and met Mr Pistorius in 2012 through a mutual friend.Mr Pistorius had bought a gun from Mr Rens, a Smith and Wesson 500, day 11 of the trial heard. He then ordered six more guns from him.The order was cancelled a month after Ms Steenkamp was killed.Mr Rens read out a competency questionnaire and examination that Mr Pistorius, a South African Paralympic athlete, had completed before he could be issued with a firearm. more at BBCnews
