and in this instance, mrs. torres flunked the polygraph. firmly believe that both results are dead wrong. >> prosecutors now accepted the idea that candra was brainwashed. but how would they prove that julio had been murdered? >> she could testify to what he said. she could testify about what happened to the dog. but we had a crime committed without an eyewitness. and this was a very, very close case. >> ballistic experts reexamined the evidence and the level of trajectory. >> if you're handing a gun, there is a lot of weight there. the chances of holding a gun to be perfectly flat, again, very, very unlikely. because i would expect it to be upward, instead of straight across. >> the medical examiner found no gunpowder residue around julio torres' entrance wound. so investigators wanted to find out the distance between julio and the gun when it was fired. a bullet isn't the only thing that comes out of the rifle when fired. gases and gunpowder do, too. brown's rifle, a .22-caliber savage model 99 was tested at the oregon state police lab. t