might not be his last. >> i'm sure i'll probably never see anything like it again in my career, but i'm ready for it if i do. a beautiful home, an affluent woman, a vicious murder. while her husband mourned, investigators searched for clues. a greetings card, an exotic dancer, and an operating room schedule showed investigators a side of medicine they hadn't seen before. it was valentine's day 2001, and susan hamilton had a busy day planned. her husband, dr. john hamilton, was an obstetrician. susan ran his medical clinical. >> susan hamilton was the

proverbial trophy wife. by all accounts, she was a star, and he was indeed a very fortunate man to have her. >> but susan never left the house that day. dr. hamilton was performing surgery all morning. when he finished, he stopped home on his way from his office to give susan some flowers for valentine's day. once there, he found the back door wide open. upstairs in the master bathroom was his wife, unconscious. >> i think that my wife is dead. please hurry. my wife is bleeding all over the place. >> dr. hamilton tried to revive her, but it was too late. >> in this case, the attacker was in complete control. it's unfortunate, but i don't think mrs. hamilton really stood a chance.

>> the killer apparently escaped through the hamiltons' back door. none of the neighbors saw anyone leaving the home. >> we were suspicious of the fact that maybe a burglar could have came in, and possibly attacked this woman, and tried to steal some jewelry or trying to steal some of the valuables from that home, and she possibly surprised them. >> this was a prominent part of oklahoma city, the bigger homes, wealthier people, affluent folks. you know, the kind that go to the country club. >> and police had another possible lead. as an obstetrician/gynecologist, dr. hamilton performed abortions at his own clinic, the one his wife, susan, ran. dr. and mrs. hamilton had been targeted by anti-abortion protesters. >> they had even made up wanted posters, i believe. wanted for murder, john hamilton, you know, that sort of thing. >> both dr. hamilton and his

wife were unapologetic about their work. >> here in the bible belt, that's not something that citizens typically embrace. we know it goes on, it does happen, but to be openly doing something like that and have a clinic that does those kind of procedures didn't sit well with a lot of people. >> at the police station, dr. hamilton was grief stricken. >> please help me. please help me. please. please. please. please. please. >> investigators hoped forensic evidence at the scene could tell them more.

susan and john hamilton had been married for 15 years, the second marriage for both. >> everyone loved dr. hamilton. his wife, a beautiful woman, and wore her age incredibly well. country club set, absolutely, and she looked like she would hang out with that affluent crowd. everyone said they were wonderful people and very much in love. >> at susan's autopsy, the medical examiner found no signs of sexual assault. she had been strangled with some neckties.

then, the perpetrator drove her head on to the floor many times. death was caused by repeated blows to her head with a blunt object. >> the wound to her forehead or the left side of the head was substantial and massive. i think that weapon has to be a weapon of opportunity. it has to be something that was in that environment that was accessible to that person. >> in a search for suspects, investigators learned that an anti-abortion group planned a demonstration in front of the hamiltons' home. >> we were able to determine that the house had been picketed, as well as a permit to picket that residence had been attained within a month of the time of this homicide. >> at the crime scene, investigators found no evidence of a break-in, but they did find a potential clue. on the kitchen counter, they

found the valentine's day card john purchased for his wife. >> and the card read, "we are important, loving, caring people together. my life would be incomplete without you. i love you, john." >> the card susan gave to her husband had an entirely different message. >> one of the captions she had written herself said, "obviously, i bought this card before last monday." then as you open the card and begin to read the inside of it, she had written, "i bought this card two weeks ago, so they don't seem as appropriate now. i love you." signed, susan hamilton. >> police wanted to know what had happened two weeks earlier. dr. hamilton said they had a fight about money, but investigators found evidence that there was more to it than that. >> there was accusations that he was having an affair with one of his clients who was a topless dancer, and this came from phone calls that susan hamilton had

gotten ahold of. >> susan discovered that her husband called the dancer more than 60 times. >> this was nuclear in her eyes. and she even moved out for a night, went to stay with her friend. >> dr. hamilton had been to her club. she had done a table dance for him for about $100, possibly on more than one occasion. >> dr. hamilton denied the two were having an affair, but with so many calls, susan was skeptical. >> it was not even the fact that he had done it, that he had actually been chasing this girl a little bit, but what was important was that susan hamilton believed he had done it. >> the one week before the valentine's day murder, susan hamilton had made dr. hamilton write a letter to this dancer,

refusing to be her doctor any further. >> and the media had their own suspicions about dr. hamilton. it started when reporters heard the tape of dr. hamilton's 911 call. >> no, listen, i'm a doctor. i've been trying cpr. please send somebody, quick. >> is she breathing? >> no, she is not breathing, and she doesn't have a pulse. >> if you listen to it over and over again, it sounds strange, what he says and the order of which he says them. it sounds weird. >> so the local tv station, kwtv, sent the tape to a company specializing in computer voice stress analysis. the test charted the microtremors in dr. hamilton's voice. it showed no excessive blood flow impacting dr. hamilton's voice. >> on this, i'm very confident that this doctor is not stressed to the degree that i would think that he would be under those

circumstances, which makes me feel very confident that he rehearsed this before he made his call. >> the analysis couldn't say, yes, he did it or, no, he didn't, but it certainly gave an insight into maybe there was something more to the story that we didn't know. >> please, please, please. >> and homicide investigators started to question dr. hamilton's unusual behavior captured on videotape just after the murder. >> he seemed to be out of control with emotions, one way or another. he would get upset and start moving back and forth. he would start crying, he'd stop. and that is one of the concerns that i had. it was almost like he was acting. >> but dr. hamilton had an alibi for the time of the murder. he was in surgery all morning, with plenty of witnesses. obviously, a doctor couldn't be in two places at the same time.

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she was strangled. she was found naked. topless dancers, abortions, and you start to hear all of that mixed together, and it made for a lot of talk in this town. >> to analyze the 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. >> 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 there's no possible way that someone had lifted mrs. hamilton's head, dropped her head down, and created additional spatter, and somehow dr. hamilton's shoes were exposed to that. you could not explain it from that. >> the blood on dr. hamilton's shoes were caused by medium-impact splatter, the kind resulted from a beating. tom bevel, a blood spatter expert hired by dr. hamilton, agreed with gardner's assessment. >> the spatter places the shoe within an area capable of receiving spatter, and the spatter is being generated by some impact into a blood source,

which, in this case, is mrs. hamilton. >> and blood spatter found four inches up inside of his right shirt cuff was most telling. it was direct spatter, meaning the blood landed directly on the shirt. for spatter to get up inside the cuff meant it had to be traveling at some speed. >> for it to get on the inside, the blood has to be coming at an angle capable of missing the wrist and the edge of the cuff and the outside and going on the inside of it. that puts very limited positions with which that could have occurred. >> the only way that could have happened is from somebody using their hand to either hold a weapon or something like that, and beat -- beat susan hamilton and the blood droplets come spewing off to be driven up in

that angle. >> scientists performed dna testing on each and every bloodstain on dr. hamilton's shirt and shoes. it was all susan's blood. luminol tests revealed even more of susan's blood on the inside of dr. hamilton's car. >> there was blood found on the steering wheel. there was blood found on the driver's side left edge of the seat, and also some hair and tissue found on the floor of the vehicle, on the driver's side. >> investigators discovered what may have been the murder weapon. the hamiltons' maid said that a marble figurine from the bathroom was missing. and communication records indicated dr. hamilton was not in the hospital in between his two operations on the morning of

the murder. >> he started getting pages from that hospital to get there now, because that second patient had already been put under anesthesiology. >> the blood spatter evidence proved he was home. dr. john hamilton's arrested and charged with murder. >> can you leave the door open? i mean, i feel like i'm in a cage. i'm sorry. i tried to explain to you -- >> i know, i know. and that's why i'm hoping that there is somewhere else that you can put me. i'm sorry. i am so distraught. i need to talk to somebody. i just can't -- i'm going nuts. >> well, that is the whole purpose of you being here, okay. >> the stage was set for one of the most publicized trials in oklahoma history.

interest to this case was the stature of john and susan hamilton and the murder occurring on valentine's day. valentine's day is the day for love, and this was not a very loving scene that i saw that day. >> so what really happened between dr. john hamilton and his wife, susan, in the days and weeks leading up to susan's murder? prosecutors learned that dr.

hamilton was making financial payments to others without susan's knowledge. >> he had been sliding money to one of his children by a previous marriage. well, she found out he lied to her about that. she absolutely went ballistic about that. told him if he ever did it again, she'd leave him. >> there was no question who wore the pants in the family, and it was not john. >> and susan suspected that there was more going on between her husband and the exotic dancer than he admitted. >> my thinking is that susan at this point says that you have broken my trust, and it's over. >> the stripper actually told me that she really believed that john hamilton was trying to work up the nerve to ask her out on a date. there wasn't any relationship there. >> on the morning of valentine's

day, prosecutors believe that the couple exchanged cards, and they argued about susan's not-so-veiled message inside. >> i don't believe i would have ever wanted to get this from my wife for valentine's day. it wasn't one of the more cheerful ones that you want. >> forcing an exchange of thoughts about one another, thoughts that maybe would have been better aired with a counselor in the room. >> the evidence suggests that dr. hamilton went to the hospital and performed one operation, and then returned home, possibly with an attempt toward reconciliation. prosecutors say the couple argued once again. in anger, hamilton took several neckties from his closet and strangled her. once unconscious, he hit her

head on the floor, and struck her with a blunt object. this created the medium-velocity blood splatter found on his shoes and on the inside of his shirt cuff. before he could clean up, the hospital paged him for his next surgery. so he took his bloody trousers and the murder weapon and left for the hospital, leaving the back door open. that's how susan's blood and hair got inside his car. how dr. hamilton disposed of the murder weapon and bloody trousers remains a mystery. at the hospital, dr. hamilton scrubbed up for his second operation, washing away the forensic evidence. but he was still wearing the shoes covered with his wife's blood. his ability to perform the operation didn't surprise prosecutors.

>> my wife happens to be a surgeon. you revert to something you've done 1,000 times. >> i am not sure i would have wanted him to perform surgery on me. >> when dr. hamilton went home, he call 911, but delivered a performance that did not fool the forensic speech experts. dr. hamilton probably believed that performing cpr would cover any blood evidence of the murder, but he was wrong. at dr. hamilton's trial, in a devastating blow, tom bevel, the blood spatter expert hired by the defense testified that he concurred with the prosecution's expert. >> in my opinion, when you look at this case in its totality, in other words, look at all of the physical evidence, look at all of the statements, i am certainly well beyond any reasonable doubt that dr. hamilton is the person who has

done this. >> john hamilton was found guilty of his wife's murder and sentenced to life in prison with no possibility of parole. >> we all felt sorry for him, because, you know, the situation, but to us, the evidence was so overwhelming, and it just seemed to show on his face that he was guilty. >> john will rot in jail. john will have to pay for this at a higher level than what he has already paid. >> meaning? >> going to hell. >> the forensic findings i thought were powerful. that is the glorious thing about this case. there was absolutely no doubt in my head. he is the killer. he's made his own bed. >> that is one of the interesting things about

forensic pathology and forensics. it's the study of the human nature. that's the dark side to it. and it is really unfortunate, but we can be pretty mean and nasty. most homeowners would prefer grass to a lawn full of weeds, but the forensic scientists, weeds can tell a story. with the help of a plant biologist and a new high-tech computer program, investigators solve the mystery of the young girl's murder. weekends were typically busy in the mouser household. one saturday morning in 1995, as cathy mouser was leaving for work, she reminded her 14-year-old daughter, genna, that she was grounded for the weekend and wasn't allowed to use the tephon