Dr. Michael Stone has created a scale he calls Scale of evil. The scale stretches from 1 to 22 and Dr. Michael Stone places each and every serial killer on this scale all depending on how evil they are.

“One study, led by Dr. Michael Stone of Columbia University, delved into the life histories of over 500 people who have killed; the findings were used to develop a 22-level chart Stone calls the “gradations of evil.” The flavors of malevolence range from “Those who have killed in self-defense and do not show psychopathic tendency” to “Psychopathic torture-murderers, with torture their primary motive.”

• Level 1

“Those who kill in self defense and do not show psychopathic tendencies.”

• Level 2

“Jealous lovers who, though egocentric or immature, are not psychopathic; crime passional”

• Level 3

“Willing companions of killers: aberrant personality—probably impulse-ridden, with some antisocial traits”

• Level 4

“Those who kill in self-defense, after extremely provocative behavior toward the victim. Highly narcissistic, but not distinctly psychopathic persons, with a psychotic core, who kill loved ones or family members out of jealousy”

• Level 5

“Traumatize, desperate people who kill abusive relatives and others.(like to support a drug habit)” but lack significant traits. Genuinely remorseful.”

• Level 6

“Impetuous hotheaded murderers without psychopathic features.”

• Level 7

“Highly narcissistic , but not distinctly psychopathic people.” with a psychotic core, who kill those close to them. Jealously is an underlying motive.

• Level 8

“Non psychopathic people with smoldering rage who kill when that rage is ignited.”

• Level 9

“Jealous lovers with marked psychopathic features”

• Level 10

“Killers of people who where in the way or killed for example witnesses.(egocentric but not distinctly psychopathic)”

• Level 11

“Psychopathic killers of people in the way.”

• Level 12

“Power-hungry psychopaths who kill when cornered.”

• Level 13

“Murderers with inadequate, rageful personalities and psychopathic features

• Level 14

“Ruthlessly self-centered psychopathic schemers”

• Level 15

“Psychopathic or cold blooded spree killers multiple murders.”

• Level 16

“Psychopaths committing multiple vicious acts.”

• Level 17

“Sexually perverse serial murderers Torture-murderers. Murder is the primary motive, following prolonged torture(among the males rape is the primary motive with murder to hide the evidence. Systematic torture is not a primary factor”.

• Level 18

“Torture murderers with murder the primary motive.”

• Level 19

“Psychopaths driven to terrorism, subjugation, intimidation, and rape, but short of murder.”

• Level 20

“Torture murderers with torture as the primary motive but in psychopathic personalities.”

• Level 21

“Psychopaths preoccupied with torture in the extreme, but not known to have committed murder.”

• Level 22

“Psychopathic, serial torture-murderers, with torture the primary motive.” (Pictured above: Ted Bundy (level 17).