Serial killer movies, books, and documentaries have made serial killers fascinating for the average person. No one can tell what got into their minds before they did their inhumane acts. Is it something genetic or in the biology of humankind that makes some of them do such gruesome things? The funny thing about these Serial Killers is some of them have admitted how they committed the crimes, the number of people they killed and what inspired their behavior. Below are the some of America's top serial killers.

1. John Wayne Gacy

Gacy, who was from Chicago, was bullied by his father and schoolmates as a child and he felt like a failure, reported the Insider Monkey.

He used to be called “Pogo the Clown” and would entertain kids from his neighborhood. He served some years in jail after being accused of sexually abusing some boys. Immediately he got out, he began luring mostly teenage boys into his home where he would sexually assault them. After that, he strangled them with a rope and buried them underneath his house. The bodies caused a foul smell, raising suspicion, and led to his arrest. He was found guilty of murder and sentenced to death by lethal injection.

2. Jeffrey Dahmer

Dahmer murdered over 17 men and boys between 1978 and 1991 according to Moreover, he did not just kill his victims, but he would also cook their body parts and eat them.

Jeffrey was known as the "Milwaukee Cannibal," and his murders were too gruesome. He was accused of rape, necrophilia, sodomy, cannibalism, and dismemberment. Police caught and arrested him after one of his victims overpowered him. He was sentenced to life imprisonment in 1992 and was jailed at Columbia Correctional Institution.

He was later beaten to death by a fellow inmate.

3. Edmund Kemper

Kemper was described as “The Co-ed Killer according to, and was an American serial killer as well as a necrophile. He was responsible for a series of brutal murders around California in the early 70s. When he was just 15, he took the lives of his grandparents and then later, killed six female hitchhikers in cold blood somewhere in Santa Cruz.

Kemper also killed his own mother and her friend before turning himself in. In 1973, he was found guilty of eight counts of murder, and he requested a death penalty. The court instead. slapped him with a life sentence without any possibility of parole.

4. Fred and Rose West

Rose West is the only female serial killer on this list. According to, Rose and her husband Fred took the lives of more than 11 young women and girls between 1967 and 1987. The couple was apprehended and charged in 1994 after the police obtained a search warrant to search their home. Several bones were found buried under the floorboards of their home and within their garden. Fred West hanged himself while his trial was in progress. Rose West was sentenced to life imprisonment in 1995 after being found guilty of 10 counts of murder.