for example, there wasn t one but two, prosecution crime scene analysts. this one, you ve already heard, believed it was murder. but this one? most people that shoot somebody in an act of rage, they don t stop with one shot. reporter: dan gilliam was the crime scene expert from the first investigation of ashley s death. using a defense attorney about the same height as ashley, he demonstrated how difficult it would have been for someone as tall as tom to have shot ashley at an angle that matched the bullet s trajectory. first of all, is that an unnatural position? for another person to be holding the gun in that manner? it is. it is for me. okay, and mr. fallis is six feet tall. how tall are you? i m six feet as well. okay. reporter: and the gun was ashley s. the shooting happened in arm s reach of where it was usually stored, said the defense. after examining all the ballistic and blood spatter evidence, gilliam just didn t believe the shooting was murder.
confused. the time element is off. reporter: the investigators account had david camm square in the crosshairs: he came home from basketball and killed his family. it s not right. it s not right. it s not right. it s not right, guys. you re not right. you re wrong. you re wrong, wrong, wrong. the ah you re wrong darrell. you re wrong. well this is not right. you re gettin off the track. something s not right here. now fix it. they told david about physical evidence they d collected: specks of blood, barely visible to the naked eye, on the bottom of the t-shirt he wore that night. a crime scene expert s science had already told them: the husband and father did it. there s blood on your shirt and then i had the dna analyzed. this is the presumptive test, that it is high velocity blood spatter. it s scientific documentation. the only way that comes on is
are these people making up this time? i m telling you people are confused. the time element is off. reporter: the investigators account had david camm square in the crosshairs: he came home from basketball and killed his family. it s not right. it s not right. it s not right. it s not right, guys. you re not right. you re wrong. you re wrong, wrong, wrong. the ah you re wrong darrell. you re wrong. well this is not right. you re gettin off the track. something s not right here. now fix it. they told david about physical evidence they d collected: specks of blood, barely visible to the naked eye, on the bottom of the t-shirt he wore that night. a crime scene expert s science had already told them: the husband and father did it. there s blood on your shirt and then i had the dna analyzed. this is the presumptive test, that it is high velocity blood spatter. it s scientific documentation.
being there with tom? i do not recall. who to believe? for example, wasn t one but two prosecution crime scene analysts. this one, you already heard, believed it was murder. but this one most people that shoot somebody in an act of rage, they don t stop with one shot. dan was the crime scene expert from the first investigation. using a defense attorney, about the same height of ashley, he demonstrated how difficult it would have been for someone as tall as tom to shoot her at an angle. is it uncomfortable? it is for me. he is six feet tall. how tall are you? six feet, also. the shooting happened in arm s reach of where it is usually stored, said the
most people that shoot somebody in an act of rage, they don t stop with one shot. reporter: dan gilliam was the crime scene expert from the first investigation of ashley s death. using a defense attorney about the same height as ashley, he demonstrated how difficult it would have been for someone as tall as tom to have shot ashley at an angle that matched the bullet s trajectory. first of all, is that an unnatural position? for another person to be holding the gun in that manner? it is. it is for me. okay, and mr. fallis is six feet tall. how tall are you? i m six feet as well. okay. reporter: and the gun was ashley s. the shooting happened in arm s reach of where it was usually stored, said the defense. after examining all the ballistic and blood spatter evidence, gilliam just didn t believe the shooting was murder. i believe that the story that mr. fallis gave is consistent with the evidence found at the scene.