bramblett was sentenced to death.n april 9, 2003, in virginia's electric chair. >> i've heard several people make the statement that if they're murdered, they want barry keese on the case because he won't stop until the case is solved. he's like columbo on tv. he's a hound dog, a bulldog. >> had it not been for forensic science, we would not be here today talking about earl bramblett being convicted and executed for killing the hodges family. it's just that simple. >> forensics, forensics. everywhere you look, every avenue you look at this case, forensics, forensics. but in this case, it is the forensic files, no doubt about it. >>> with no forensic evidence found at a murder scene, investigators were baffled. but they suspected that the victim's dog had witnessed the crime. if she had, forensic scientists needed some way to find out what the dog had seen. >>> north liberty, iowa, is such a small town, it doesn't take much effort to know your neighbors. but one resident the townspeople