PRETORIA, South Africa -- An expert witness for the defence at the murder trial of Oscar Pistorius was supposed to help the athletes assertion that he killed his girlfriend by mistake last year, but he ended his testimony on Thursday amid blistering attacks on his credibility by a prosecutor who accused him of slipshod analysis and fuzzy explanations. Roger Dixon, a former forensic scientist for the South African police, was frequently on the back foot as he tried to fend off sharp questions from chief prosecutor Gerrie Nel, who says Pistorius is lying and fatally shot Steenkamp on purpose after a nighttime argument in his home. For nearly a week, the double-amputee runner was subjected to the same kind of harsh scrutiny when he testified that fear led him to fire four shots through a toilet door at what he thought was an intruder. Legal analysts say Judge Thokozile Masipa will review the mass of testimony in its totality, which is said to be almost 2,000 pages so far, and that it can be misleading to assess the course of the trial by a single witness. Defence lawyer Barry Roux, for example, hounded police witnesses with questions about alleged mishandling of evidence at the house where Pistorius killed Steenkamp in the early hours of Feb. 14, 2013. Masipa, who will deliver a verdict on the premeditated murder charge against Pistorius, adjourned the trial until May 5. Dixon, now a geologist at the University of Pretoria, was forced to acknowledge Wednesday that he had no expertise in light and sound measurement, as well as pathology and ballistics, despite his commenting on those topics while testifying about the circumstances of Steenkamps death. On Thursday, Nel resumed his attack, criticizing Dixons work after the geologist did not use Pistorius exact height when standing on his stumps. The prosecutor questioned why his measurements were 20 centimetres (eight inches) shorter in a test to see if Pistorius head and body would have been high enough to be seen by a neighbour through a window of his bathroom. "It is something I omitted. I overlooked it at the time," Dixon said, adding that he was not trying to "mislead" the court. Nel also questioned Dixons statement that he conducted tests showing that Pistorius bedroom is very dark at night and with the curtains closed, a conclusion that would support the athletes contention that his inability to see his girlfriend on the night that he killed her contributed to the shooting. Nel noted that Dixon judged how dark it was without using any light-measuring equipment. "What one can see using your eyes is a very subjective thing," Nel said. "I wanted to see what I could see," Dixon replied. "A measurement doesnt translate to me into what Im actually seeing." Nel also said Dixon was giving convoluted responses, addressing the judge: "My lady, may I just ask the witness which question hes answering at the moment?" Another time, Dixon picked up a prosthetic leg of Pistorius that had been included as trial evidence while discussing varnish traces that he said were found on the prosthesis and he matched to the door varnish. The defence has cited that as proof that the Paralympic champion tried to kick down the door to get to Steenkamp after realizing, according to his version, he had shot her by mistake. Then the prosecutor chided Dixon for not bringing the varnish sample to court. Dixon appeared serene throughout the rough-and-tumble of his cross-examination. Asked if he knew the states case and other trial details, he said: "I am not like most people. I do not have a television set. I do not have a radio at home." His Twitter handle reads: "I am a mineralogist and forensic scientist, I grow clivias and other plants, have a landrover and a Trans Am. I live in a forest I planted myself." He acknowledged the pressure from the feisty prosecutor in a message on his Facebook account that was apparently posted on Thursday morning. He confirmed its authenticity when questioned by journalists. It read: "Third day in court today. Lets see how much of my credibility, integrity and professional reputation is destroyed. It is difficult to get belief in those who will not listen because it is not what they want to hear. After that, beer!" Yeezy Boost 350 Uk Cheap .A. Happ. The Toronto Blue Jays will be looking to improve the starting rotation ahead of next season and pitchers like Happ have a chance to show they belong as the disastrous 2013 campaign draws to a close. Yeezy 350 Wholesale Uk . The (14-15-5) Jets are seventh in the Central Division with 33 points. They trail sixth place Nashville and fifth place Dallas by two points. http://www.cheapyeezy350uk.com/ . The judge sternly instructed the prosecutor to restrain himself and he apologized -- then went right back to trying to pick holes in the testimony of the double-amputee runner. It was a harsh day of cross-examination for Pistorius, challenged relentlessly about his account of the moments just before he killed Reeva Steenkamp, as well as circumstances related to several firearms charges against him, including the firing of a gun in a crowded restaurant. Yeezy Boost 350 Uk Sale . Quarterback Drew Willy appeared to injure his throwing hand on the third last play of practice Thursday. Yeezy Boost 350 Uk Release . Osmond, of Marystown, N.L., fell in the middle of her routine and placed fifth in the ladies free skate at Iceberg Skating Palace (110.73 points), but that was all the Canadians needed after a strong performance by Kevin Reynolds in the mens free earlier Sunday.Brian Carney is backing St Helens bid to defend their great name following claims by former player Lance Hohaia that he wasnt supported in his recovery from a high profile concussion. The New Zealander was punched twice by Wigans Ben Flower in the 2014 Super League Grand Final. In recent days, he claimed in an interview with New Zealands Sunday Herald newspaper that he was not offered a suitable period of rest to recover from concussion symptoms. The former international, who walked out of his contract with Saints and subsequently retired in April, also claims that he was offered only prescription medicines following the incident. St Helens Lance Hohaia lies on the ground after being punched by Ben Flower in the 2014 Grand Final St Helens have firmly denied the allegations. It is a very messy situation and Stt Helens have fought back, said Carney.dddddddddddd. Lance Hohaia, he suffered terribly in that. He claims he hasnt had the treatment he thinks he should have had from the club. The club have responded, theyve denied that and theyve said they will take all action available to them to defend the great name of St Helens, which they should do! And the former league legend says St Helens wont be distracted by the furore over the comments, ahead of their hotly anticipated tie with Wigan on Friday.The Lance Hoia incident and St Helens reaction to it - I dont think that will affect preparation this week. I think sports men and sports women are able to isolate themselves in a necessarily selfish way to concentrate on the game at hand. I dont think it will affect the performances of these two sets of teams. 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