A smash and grab robbery. A hit-and-run car accident. A mad gunman firing into a crowd. A horrifying car crash on a highway. An illegal tree cutting operation and an arsonist setting a deadly blaze.

It's three o'clock in the morning when rising soccer star Mathew Maher rear ends a minivan on New Jersey's Atlantic City Expressway.

Shots are fired in a suburban shop. A robbery turns deadly. And while the criminal tries to hide the evidence, high-tech crime fighting equipment goes into action.

Forensic serologist Gordon Calvert extracts evidence from spit, blood, and hair. Sometimes crime scenes contain enough evidence for a straightforward determination. Others are a puzzle.

A woman is ambushed in front of her home, shot at close range while she sits in her car talking on her cell phone. Just before the shots, the victim screams there he is! No name, but police think they know who did it.

16 year-old Brittney Gregory disappears from her father's house with no sign of foul play. Family friend Jack Fuller brags of burying a girl "in the middle of nowhere," and two weeks of searching threaten to prove his boast true.

A blood stain, missing money, and a confession. But where is the body? Equipment salesman Michael Marques is murdered in his own driveway.

Trying to identify a 40 year old murder victim who was found in a trunk by exhuming the body.

A Florida man makes an emergency call to police. He's arrived home to find his wife murdered and his house robbed. It looks like a burglary gone wrong--but blood on the husband's clothes may tell a different story.

Three children and their parents are killed when a deadly fire rips through their home. Was this a tragic accident? Or was the family victim of a terrible crime? Fire Inspector Victor Zamaloff is called in to investigate.

A robbery turns deadly and while the criminal tries to hide the evidence, high-tech crime fighting equipment goes into action. Shot Spotter alerts investigators who arrive at the scene.

Residents of a Florida neighborhood complain that a stench of decay is hovering over a backyard. Police respond to find a rancid odor and a seething mass of maggots. Days later, a decomposing body is found twelve miles away.

A man is murdered, brutally stabbed with a steak knife. The victim's neck, chest, and legs have been slashed. The crime scene is flooded in blood.

A shocking claim: a young boy, it would seem, has been sexually abused. Or has he? Underwear with his father's semen on it is found at the scene of the crime. But what does it really mean?

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Meet Royce D. Wilson, known to his colleagues as "Rayce." As the Director of Forensic Services for the Hillsborough County Sheriff's office he is knee-deep in every homicide scene in Tampa, Florida.

At an unprepossessing house in Poughkeepsie, a serial killer stores eight dead bodies, grisly victims of cruel and sadistic murders.

Dead man is found covered in bite marks.

CSI only gets one chance to document a crime scene.

It's the American Dream: owning a home in a good neighborhood. Never did it seem more accessible than during America's housing boom. But dreams went bust when mortgage rates for homeowners' in a Pennsylvania development suddenly went through the roof.