Warning: Disturbing and graphic content ahead.

The majority of his victims were Jewish refugees fleeingFranceduring the Nazi occupation.

A true crime TV series about Farag’s exploits was recently released onShahid TVand became a huge hit.

Marcel Petiot

Shipman would kill his victims, who were mostly elderly patients, by giving lethal doses of drugs.

It was reported that the smell inside the vault was so bad “that police needed breathing gear.”

The moniker comes from the fact that the killer would crush the victims' heads with a large stone.

Pedro Rodrigues Filho

Their killings were so shocking they inspired the creation of the characterHannibalLecter.

Allegedly, his motivation for the killings was “revenge against society,” after abreakup.

Aerial view of a city

View of Egypt

Closeup of Juana Barraza

Arrows pointing where the victims were found

Closeup of Yoo Young-chul

Closeup of Harold Shipman

Closeup of Niels Hogel

Closeup of the killers

Arrow pointing to Tsutomu Miyazaki

A sign of the "Highway of Tears"

Yavuz Yapıcıoğlu

A city in India

Police searching for evidence

Outside view of a bar or restaurant

Florence, Italy

B1 Road in Namibia

Closeup of Mikhail Popkov

City in China

A news report about Carlos Eduardo Robledo Puch