The surgeon's brutal deeds earned him a savage nickname.
It was a murder scene that could appall the most hardened homicide detective...
Was he running from the law or for his life?
An inquiry into his sinister activities concluded that he killed at least 215 of his patients.
Seemingly motiveless, riddled with rumors of occult practices.
A thumbprint on a cashbox led police to the murderers—and changed the course of criminal history.
Who killed Isidor Fink? Most bafflingly of all ... how?
He was one of France's most prolific executioners, having killed nearly 3,000 souls.
Some allege that he confessed to the Jack the Ripper murders with his dying breath.
He was the sadistic killer behind one of the most chilling murder sprees in American history.