and ali irsan said he shot him to protect himself and his family. >> prior to the murder itself, ali ff's department that the victim was harassing the family, threatening the family. >> it looked like self-defense. he was holding the gun, a gun which had been fired. >> correct it had been. >> nearly two decades later, a different story emerged. one that suggested that it wasn't self-defense at all. but premeditated murder. nesreen remember that night long ago. now she told investigators how everything felt staged. how there was no struggle. and no exchange of gunfire. >> she heard the big room first, and then later, by nine or ten minutes, heard the two pumps of the small gun. understanding that he was dead before those second shots were fired. >> how old was she? then >> nesreen was 11 years old. >> -- now told effective wells, that they had made up the charges about his son-in-law harassing him. >> they also said that the scene was staged to look as though there had been a struggle. and that irsan placed a gun in his dead son in law's hands. >> when i spoke with him ali irsan denied