The Most Prolific American Serial Killers People
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The Most Prolific American Serial Killers

The United States has been home to some of the worst serial killers in human history.  These American serial killers have some of the highest number of victims in history, arguably making them the scariest human beings on the planet. Although there are many other prolific serial killers throughout the world, the United States has one of the largest groups of killers with 10 or more victims. Although some serial killers boast of hundreds of victims to their names, others have a more terrifying, if not lower number, of kills.


With the number of victims that each serial killer on this list has, it’s a wonder that these killers got away with it for as long as they could. Some of the killers had dozens of victims before anyone discovered that a single crime had been committed, while others were hunted by police for years.


Which serial killers in the United States had the highest number of victims? How did they get away with the crimes for so long? What was it that finally got them caught? This list features the most prolific serial killers in U.S. history.

The List
  1. 1
    Gary Ridgway, better known as "The Green River Killer," was responsible for the deaths of at least 49 proven victims, though he confessed to the murders of at least 71. However, the true number of victims is likely closer to 90 women. Ridgway strangled his victims and dumped the bodies in remote locations from 1982 to 2001. When he was caught in 2001, he was sentenced to life in prison.

    Age: age 65
    Birthplace: Salt Lake City, Utah, United States of America
    Institution: Tyee Educational Complex
    Born: 1949
    Gary Ridgway - The Green River Killer : see more

  2. 2
    Donald Harvey once boasted of killing 87 people, even though the police have only connected 37-57 names to his crimes. While working in a hospital, he acted as a self-professed "Angel of Death" - he killed his victims with painful poisons in order to end their alleged suffering. He was caught in 1987 and sentenced to 28 consecutive life sentences in prison.

    Age: age 62
    Birthplace: Ohio, United States of America
    Profession: Physician
    Born: 1952
    Donald Harvey : see more

  3. 3
    John Wayne Gacy was best known as "The Killer Clown" because of his career as a professional clown entertainer. However, it was his rape and murder of at least 33 young men that earned him infamy. In Chicago, Gacy strangled his victims and then buried the bodies on or around his property. He was apprehended in 1978, sentenced to death, and executed by lethal injection in 1994.

    Age: Died at 52 (1942-1994)
    Birthplace: Chicago, Illinois, United States of America
    Profession: Clown
    Height: 5'10"
    Died: 1994
    Cause Of Death: Lethal injection, Capital punishment
    Place Of Death: Crest Hill, Illinois, United States of America
    Born: 1942
    John Wayne Gacy : see more

  4. 4
    Jane Toppan once said that it was her greatest wish that she'd have killed more people than any man or woman who ever existed. While she didn't quite reach her goal, Toppan's 31 murder victims in 1885-1901 earned her a place in serial killer history. She killed patients when she worked as a nurse, poisoned her landlords, and murdered her foster sister. When she was discovered in 1901, she was found not guilty by reason of insanity and spent the rest of her life in an insane asylum in Massachusetts. She died in 1938 at age 81.

    Age: Died at 81 (1857-1938)
    Birthplace: Boston, Massachusetts, United States of America
    Profession: Nurse
    Died: 1938
    Place Of Death: Taunton, Massachusetts, United States of America
    Born: 1857
    Jane Toppan : see more

  5. 5
    Ted Bundy killed at least 30 women during his murderous streak in the early 1970s. Bundy kidnapped, killed, and raped his victims in Colorado, California, Idaho, Oregon, Utah, Florida, and Washington. He was caught in 1978, sentenced to death, and executed in the electric chair in 1989.

    Age: Died at 43 (1946-1989)
    Birthplace: Burlington, Vermont, United States of America
    Profession: Criminal
    Institution: Woodrow Wilson High School, University of Washington, University of Utah, University of Puget Sound, Temple University
    Major/Field Of Study: Psychology
    Height: 5'10"
    Died: 1989
    Cause Of Death: Electric chair, Capital punishment
    Place Of Death: Florida State Prison, Florida, United States of America
    Born: 1946
    Ted Bundy : see more

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