ABC 20/20

A parishioner is found dead in rural Pennsylvania church with a gunshot wound to his head. When investigators uncover suspicious details about the man's life, it's up to the Medical Examiner to get to the bottom of the mystery.

When a loving husband dies in a Maryland hotel fire, the medical examiner grapples with a mysterious cause of death, as investigators search for an elusive killer with the perfect undetectable weapon.

Facing the shattered remains of a horrible crime and one of the biggest mysteries of her career a forensic anthropologist pores over a box of bones in search of a microscopic missing link.

The body of Jennifer Corbin a 33-year-old stay-at-home mother is discovered in her bed, and the evidence suggests suicide. That is, until the medical examiner determines someone else pulled the trigger.

A wealthy woman disappears from her upscale Ohio retirement village. Days later, her body is found in the trunk of her abandoned car.

When the hastily cremated remains of a church-going grandma and her troubled daughter are discovered in the basement of an Ohio home, local investigators are joined by one of the most experienced pathologists in the country.

A Pennsylvania electrician is poisoned. To catch his killer, it will take the world's leading forensic pathologist, a state-of-the-art technique, and evidence from beyond the grave.

When the body of a 24-year-old truck stop waitress is discovered in North Carolina, it will take more than a decade and cutting-edge science to track down her killer.

Determined to prove a Missouri mom was murdered, an ambitious medical examiner orders an illegal exhumation. And when the autopsy reveals foul play, the search for the woman's killer reveals another mysterious cold case with a chilling connection.

The surgically dismembered remains of an unknown woman are discovered in Wisconsin. Mutilated beyond recognition, it's up to a forensic anthropologist to establish her identity and help track down her killer.

The dismembered remains of an unidentified young man are discovered in Wisconsin, where a tattoo, a plastic bag expert, and an unexpected confession leads detectives to the killer's door.

In Connecticut, the smoldering mutilated body of a woman is discovered on a desolate road. It's up to investigators to determine who she is and how she got there.

There's a sadistic serial killer stalking young male drifters in Florida. As the death toll reaches five, it will take a jailhouse tip, a survivor's story, and a tiny chip of paint to track him down.