Monday

A man is found shot to death in his home, and his ex-wife has a perfect alibi: She was camping with her boyfriend in a state park, 150 miles away. Determining time of death becomes critically important, and in order to do so, investigators need to know when the victim ate his last meal. Their question is answered by an endocrinologist, a forensic botanist, and a short-order cook.

A union official was executed in his home not long after a strike by the union membership. Neither his wife, who was sleeping in the adjacent bedroom, nor anyone in the neighborhood heard any gunshots. It would take a forensic sound test, an electron microscope, and a nightgown to explain why.

Forensic photography: Forensic photographers are among the first people at a crime scene, capturing vital clues on film. What do the cameras capture that can't be seen first-hand, and who are the men and women who analyze the camera's clues?

In the late ‘70s and early ‘80s, a legitimate Puerto Rican independence movement took hold in the United States. But a splinter terrorist group known as the FALN was suspected of executing hundreds of bombings in major US cities.

In the early 1990’s Philadelphia became the scene of a bloody vendetta. The streets erupted in mob warfare. Authorities feared innocent people would be caught in the crossfire.

When Becky Bliefnick failed to pick up her boys from school, a family member went to check and found her dead in the living room. Detectives found a major clue in an unlikely place - on an episode of the game show “Family Feud.” 

After a fiery car crash, charred remains are identified as Clayton Daniels until forensic evidence suggests the death was staged. As questions mount, investigators follow burn patterns, autopsy clues and records to uncover a bizarre scheme.

Neuroscientist Amy Bishop is denied tenor, and it results in deadly consequences for her co-workers.

While her 10-year-old daughter listens upstairs, failed self-help guru Derek Medina shoots his wife during an argument, then casually posts pictures of her dead body on Facebook.

New couple Leon and Valerie have one unfortunate thing in common – they both hate their exes. When Leon's ex-wife and Valerie's ex-husband are targeted for murder, it becomes a case of he said/she said. Who hired a hitman?

In Sioux Falls, South Dakota, young mothers become prey for a sexual sadist who stalks them, using homemade "tire-poppers" to force them off the

A hard-working father of two is shot in the head just steps from a notorious strip club. When Lt Joe Kenda traces the victim’s final hours, the field of potential suspects grows, but no one is talking. The case is stuck in neutral until Kenda uncovers a conspiracy organized by an unlikely triggerman.

On valentine's day weekend 1999, three tourists from yosemite national park disappeared and were found murdered a month later. At the time, handyman cary stayner was questioned but released due to lack of evidence. However, when another missing woman was found dead in yosemite park, authorities were able to pin stayner with all four murders.

After an all-night study session in a university lab, math student Deborah Wilson is found strangled, missing her shoes and socks. Years later, Philadelphia investigators unearth the shocking obsession that drove a killer to take her life.