six years earlier, miriam's first husband, jack giles, shot himself to death while he was sleeping nexto her. >> anytime you hear that a woman has more than one husband die of a gunshot wound to the head, you get concerned. >> and colorado investigators soon discovered something odd about this suicide. for one thing, it was miriam's half-brother, a local policeman, who was first on the scene and declared the death a suicide. this despite the fact jack giles apparently killed himself with his right hand. >> jack couldn't do anything with his right hand. he was a complete lefty. and yet, he would choose to shoot himself, kill himself with his off hand, his right hand? that didn't make sense to us. >> also strange was miriam's explanation as to why jack committed suicide. >> she said yes, he was very depressed because of her daughter, amy who had supposedly overdosed. miriam changed that story when she told it to me quite a few times. it was overdose once and one time it was some sort of physical ailment. >> records showed miriam was the beneficiary of jack giles' $100,000 life insurance p