Radiology technician Carl Tanzler was a bit too obsessed with one of his patients.

Teresita Basa was stabbed to death in Chicago. Did her spirit return to identify her killer, or was it just revenge?

Murderer Adam Sheafe targeted priests and pastors.

The Candy Man, Dean Corl, was the most prolific serial killer in America before John Wayne Gacy.

Teenagers Lloyd Bogle and Patricia Kalitzke were murdered in 1956. Their case was finally solved in 2021, thanks to a sheriff's department that never gave up.

Garnett Spears became the victim of his mother's mental illness in 2015.

Cynthia Gonzalez was murdered and dumped by the side of the road in Texas in 1991. Her case went cold until 2025, thanks to help from the University of Texas at Arlington's Criminology Department.

A young man from Buffalo, New York, had investigators believing they were looking for three different serial killers.

JFK's mistress, Mary Pinchot Meyer, was murdered while taking a walk in a Washington, D.C., park. Apparently the CIA wanted her diary.

Lt. Commander William Bruce Pitzer died at Bethesda Naval Base under suspicious circumstances three years after the JFK assassination.

In 1914, high school teacher Lydia "Lyda" Beecher was murdered by one of her students in Poland, New York. The trial dubbed the student a "high grade imbecile."