Often touted as America’s first serial killer, H.H Holmes was said to have murdered up to 200 individuals in his murder castle becoming one of the deadliest killers in history. But just how much of the legends are true?

In the late 1940’s a pair of killers, Raymond Fernandez and Martha Beck, dubbed the Lonely Hearts Killers scoured the “lonely hearts ads’ looking for potential victims to scam out of their possessions. But for some, the scams ended in murder.

Between the years of 1990 and 1995 several women were found dead on the highways of several states. After the cases became cold, a letter arrived at the offices of the Oregonian Newspaper claiming to take responsibility for the murders all signed with a Happy Face.

Today a ghost haunts the Old City Jail in Charleston, South Carolina, one said to be in a white wedding dress looking for more victims to add to her list. Her name is Lavinia Fisher and she's often called America's first female serial killer. But is there any truth to the legends?

In the early 1870's travelers making their way westward started disappearing along the Osage Trail. Tracking the last known whereabouts of those missing led investigators to the home of The Bender Family and soon the area they owned became known as "Hell's Half-Acre".

On August 8th, 1973, 17-year-old Elmer Wayne Henley reported the murder of 33-year-old Dean Corll. Elmer had pulled the trigger and what seemed like an open and shut case, revealed one of the worst serial killers in U.S history.

In 1912, Bela Kiss and his wife moved to the small town of Cinkota, Hungary. Bela was well-liked by his neighbors and considered an intelligent man with many interests, unfortunately for the unsuspecting widows in Budapest, one of his interests involved murder.

For one month in 1978 serial killer Richard Trenton Chase stalked the homes of Sacramento, California. All he needed was an unlocked door to perform his heinous acts. But Richard also suffered from mental illness, one that made him believe he needed to drink blood to remove a poison in his body.

For four years in the late 1980s, an unknown killer stalked the streets at night in Mumbai and Kolkata. His murder weapon; a 30-kilogram (65-pound) stone slab he used to crush the heads of the homeless population.