The New Detectives

Beneath a layer of trust can lurk a deadly obsession. In these cases, authorities employ an arsenal of forensic techniques to uncover the truth.

Often, a killer will build the victim's trust before he or she attacks. In this episode, New Mexico police search for a missing teenager who disappeared from a local skating rink.

Marriage is one of the tightest bonds two people can have...until lies and deceit drive one of them to kill. Forensic experts are employed to link a woman's husband to her violent murder.

Sometimes the faintest fingerprint or tire track is all investigators need to solve even the most brutal crimes.

A house fire in California turns into a murder investigation when authorities discover that the victim's best friend and personal manager had recently cleaned out her bank account.

A killer will often try to disguise the victim's body in an attempt to the hide the actual cause of death; however, forensics cannot be fooled.

When money is the motive, there is no limit to what a killer will do to get away with their fortune.

Sometimes, cooperation from people who are not associated with a crime in any way is the only link between a criminal and the clues left behind for forensic experts.

Even ordinary objects, when used to kill, carry enough evidence for forensic scientists to piece together the most complicated murders.

Even the most sacred vows are sometimes not enough to stop a serious desire. In this episode, a nurse suspects a patient's husband of attempted murder by poisoning.

Often, criminals misuse the trust they've built with their victims to commit heinous misdeeds. A family discovers the mummified remains of a pregnant woman.

When the amount of money is substantial, a person can be motivated to do terrible things to someone they love. Police discover that a large life insurance policy was motive for a man's murder.

Murdering a child is perhaps the most heinous of crimes. But no matter how defenseless a killer believes a young child to be, there is no hiding from the clues left behind.

Forensic science has advanced so much that even the oldest remains still share the clues necessary to convict a killer. Investigators use DNA to solve a murder case from 1980.

Blood can be the most telling evidence of a murder and often is the only thing investigators have to link a killer to his or her victim.

Whether it is a fingerprint or a single bullet, sometimes it is the smallest piece of evidence that is needed to crack the biggest cases.

When an unexpected crime occurs with no eyewitnesses, very few clues and the killers on the run, authorities must rely on forensic science to discover the fatal twist in these cases.

Murderers will go to great lengths to keep their crimes concealed, but forensic evidence is impossible to cover up.