Police are called to the scene of shooting at about eight in the morning, and find a man laying in the street with three gun shot wounds and a pair of scissors clutched in his hand. The police have witnesses but are getting conflicting stories. The case will require a solid investigation to be solved, the forensics in this case will only be able to aid in conviction not solve the case.

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A landlord finds one of his tenants dead. The initial investigation show this was a vicious attack where the victim had been stabbed approx. thirty times. The neighbors are cooperative and admit that they and the victim smoked dope on a regular basis. One of the victims friends has a record that casts suspicion on him. The investigation leads to another suspect that was there that day. Some classic detective work.

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In Little Rock, Detective Chuck Ray is called to a scene where one man has been shot in the hand while another man lies dying outside of his apartment with a gunshot wound to the abdomen. Shell casings and clues point to a serial robber that police have been tracking. But the serial robber doesn't usually kill his victims. Could this be the same guy? And is he getting even more dangerous? When a shooting takes the life of another innocent victim weeks later, and the patterns seem to match, Ray knows he and the team must work quickly to get this serial killer off the streets right away.

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In Indianapolis, Indiana, a 21-year-old man is gunned down during a violent shootout in a residential neighborhood. Detectives Chuck Benner and Todd Lappin sort through the wreckage left behind: forty shell casings litter the street, a pistol has been left on the ground, and an abandoned car is riddled with bullet holes. Using these clues, the detectives uncover multiple suspects engaged in a deadly vendetta--but were the shots that killed the victim fired in self-defense--or was someone shooting to kill? Benner and Lappin will need every tool in their forensic arsenal to find out the truth.

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Two gay men are murdered in the their home by someone who apparently caught them sleeping. The investigators find that one of the murdered men's credit had been compromised and decide to see where that leads them, The investigators have some good leads to begin with but the story takes some twists and turns that could not be foreseen.

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A man is murdered in the parking lot of a Hispanic night club. The killer method implied that he was a professional, and the investigation will prove he is indeed a very dangerous man.

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After a man is stabbed in his apartment detectives has great deal of difficulty identifying the suspect in this crime. They had an alias and several people who saw him but no name. After a lot of leg work they are able to identify and arrest their suspect. A lot of really good low tech detective work.

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A car hits a tree and a fire plug and comes to stop; inside is found a man dying from what appears to be multiple gun shot wounds. There's no evidence of where the crime scene is, and there are no actual witnesses in the area. And investigation spanning 10 days finally results in an arrest.

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In a suburban neighborhood of Cleveland, gunshots ring out in the middle of the night, and a young male is found dead on the front porch of his own house. Detectives Tom Armelli and Joe Chojnowski learn from the victim's girlfriend that a visit by friends that evening quickly turned violent. Was this a home invasion? Or, a friendly fight taken too far? To discover the truth, detectives must rely on their strongest piece of evidence, a cooking pan. Will this pan hold the recipe to catch the killer? Forensic science and diligent detective work are the crucial ingredients needed to break this case.

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Detectives Tim Entenok and Tom Armelli are called to the scene of a grizzly family shooting. Two adults and three young children have been killed. Detectives work their way through spent bullets, shell casings, and other evidence at the scene, including two firearms, to piece together what happened and discover what led to this violent family massacre. Was it the result of a home invasion or a domestic dispute? And where is the missing upstairs neighbor? Detectives send all available officers into the dark night to find a violent, brutal killer before he can cause more devastation.

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A poker game in the basement of a home is broken up by four men who burst in and rob everyone. Shots are fired and later a man is found dead in front of a home several doors down. No admits to shooting the man (who would seem to be one of the robbers) and detectives have to determine if the man was shot by the other suspects or if someone at the card game shot him.

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A 15 year-old boy is shot to death on a neighborhood street. Investigators Tom Cassidy and C.J. Dominic interview a witness who saw two unknown men attack and shoot the boy. Surveillance video from a nearby shop confirms the witness' story but doesn't give a clear picture of the attackers. Investigators are at a dead end--until they learn their witness really may know who the shooter is and was just too frightened to say. Cassidy and Dominic must find the witness and see if she can identify the shooter before someone else gets hurt.

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A quiet Cleveland neighborhood ignites into a war zone as a gun battle breaks out at night. Chaos ensues as neighbors duck for cover from the barrage of bullets flying back and forth. The next morning, veteran detectives Walley Everett and Mike Smith discover a young father of two lying dead inside his bedroom. But no one knows why. To get to the truth and to catch the killer, detectives must rely on forensic science to uncover the secrets that lay hidden in a single bullet.

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In broad daylight, a young man is shot dead in his own front yard. Investigators Gary Galetta and Glenn Weather question witnesses who saw the murder, but no one can identify a suspect. A store clerk appears to have knowledge of the shooting before it happened--could he be the killer? The team uncovers evidence the victim may have been selling loose cigarettes in the neighborhood, but that does not seem like enough of a motive for a murder. It will take ballistic analysis and a careful review of leads--from cell records to surveillance tape--to lead investigators to the killer.

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