forensic evidence from susan hamilton's murder, homicide investigators asked blood spatter expert ross gardner for his opinion. >> in this case, it is what the suspect says is ultimately going to be tested against the crime scene. >> when emergency workers arrived, dr. hamilton was covered in his wife's blood. >> dr. hamilton's presence at the crime scene, the fact that he's bloody is completely expected. he has come home and found his wife dead. he's cradled her, taken action.

. >> virginia beach police contacted ross gardner, a nationally recognized crime scene analyst. >> this was a very complex crime scene, and it wasn't until we got a lot of the dna information back that we were able to make sense of it. but certain aspects of the crime scene analysis certainly supported eddie's statement. >> but then gardner looked more closely at the crime scene photos and noticed that they contradicted eddie's story. the autopsy showed that the first shot penetrated quincy's heart. this creates arterial spurts, high-pressure ejections of blood from the body, and they are easily identified. >> because the blood is ejecting out in a stream, it breaks up into larger masses. and so, what we see in an arterial spurt are very large, elliptical-shaped stains. >> eddie said when he saw his wife being attacked, he grabbed the gun from the nightstand and shot quincy brown as he rushed towards him. yet, the blood spatter evidence and the crime scene photos showed that quincy brown was facing in the opposite direction. >> there is no evidence whatsoever that suggests that quincy w

evidence, without ross gardner and the blood spatter analysis of the crime scene, to be able to disprove eddie's statement, because all we had was eddie's statement and the crime scene, and he had a good story >>> up next a middle-aged man looks for some excitement. >> he's just like any other guy that would go to a strip club. >> and later turns up dead. police ask if the two were connected. she said she killed him. i asked her why and she said because they told her to. >> police question the dancer's boyfriends. >> we do not allow boyfriends or husbands to be in the bar. >> eventually, with forensic evidence and a little luck, the pieces start to fit. many young men and women dream of working in the television or film industry. pat mcrae fulfilled that dream and he was good at it. >> he worked at iowa public television. he was a video production coordinator. he was very well liked at that place, friendly face, always smiling when i saw him. >> mcrae typically worked long hours. unfortunately, it took its toll. in 1997, he and his wife of 12 years divorced. mcrae took it hard but remain

forensic evidence from susan hamilton's murder, homicide investigators asked blood spatter expert ross gardneror his opinion. >> in this case, it is what the suspect says is ultimately going to be tested against the crime scene. >> when emergency workers arrived, dr. hamilton was covered in his wife's blood. >> dr. hamilton's presence at the crime scene, the fact that he's bloody is completely expected. he has come home and found his wife dead. he's cradled her, taken action. >> but not all of the blood on dr. hamilton's shirt could be explained away. >> dr. hamilton's claims presented some major contradictions. i don't expect to find spatter. the spatter i observed were present on the front of his shirt, below his neck, on both sleeves at the cuff, and this suggested that his arms and his body had been in close proximity to a spatter event. >> on dr. hamilton's shoes were tiny blood droplets, almost invisible to the naked eye. these were suspicious, not only the shape, but the angle at which the blood landed on the shoes. >> there was some coming down on the toe from above 40, 50 degrees. and