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As early as the 1800s, the United States has seen killers who murdered on a massive scale. Since then, the country has become captivated with true crime, particularly serial killers. Shows like Netflix's "Mindhunter" or books like "I'll be Gone in the Dark" try to get into the minds of these terrifying killers to learn about motives and tactics.
Here's a list of men, women, and, yes, even families who were serial killers in every state across the United States.
Editor's Note: A warning that these accounts can be upsetting to some and describe graphic details of real-life cases.
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ALABAMA: Thomas Warren Whisenhant
Thomas Warren Whisenhant.
Alabama Department of Corrections
ALASKA: Robert Hansen
Robert Hansen.
ALASKA DAILY NEWS/AP Images
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ARIZONA: Mark Goudeau "The Baseline Killer"
Arizona Baseline Killer.
Pat Shannahan/AP Images
ARKANSAS: The Phantom Killer
Texarkana in the '40s.
Ed Clark/ Getty
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CALIFORNIA: Ed Kemper
Ed Kemper.
Bettmann/Getty Images
COLORADO: Scott Lee Scott
Scott Lee Kimball.
Colorado Department of Corrections
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CONNECTICUT: William Devin Howell
William Devin Howell.
Connecticut Department of Correction/ AP Images
DELAWARE: Steven Brian Pennell
Steven Brian Pennell.
Public domain
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FLORIDA: Christine Falling
Christine Falling.
Mark Foley/ AP
GEORGIA: Atlanta Child Murderer
Wayne Williams.
Bettmann / Getty
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HAWAII: Honolulu Strangler
Hawaii in the '80s.
Historical / Getty
IDAHO: Lyda Southard or Lady Bluebird
Lyda Southard.
Public domain
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ILLINOIS: John Wayne Gacy
John Wayne Gacy.
AP Images
INDIANA: Herbert Baumeister
Herbert Baumeister.
Public Domain
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IOWA: Carroll Edward Cole
Carroll Edward Cole.
Public domain
KANSAS: Dennis Lynn Rader
Dennis Lynn Rader.
COURT TV/AP Images
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KENTUCKY: Donald Harvey
Donald Harvey.
Ohio Department of Rehabilitation/ AP
LOUISIANA: Clementine Barnabet
Louisiana in the 1900s.
Hulton Archives/Getty
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MAINE: John Joubert
The jail where John Joubert was executed.
CHARLIE NEIBERGALL/ AP
MARYLAND: Joseph Metheny
Joseph Metheny.
Baltimore Police Department
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MASSACHUSETTS: The Boston Strangler
Boston in the '60s.
Boston Globe/ Getty
MICHIGAN: Elias Abuelazam
Elias Abuelazam.
Michigan Department of Corrections
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MINNESOTA: Paul Michael Stephani
An article about Paul Michael Stephani.
Milwaukee Journal Sentinel
MISSISSIPPI: Glen Rogers
Glen Rogers.
ED REINKE/ AP
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MISSOURI: Terry Blair
Terry Blair.
Missouri Department of Corrections
MONTANA: David Meirhofer
An article about David Meirhofer's confession.
The Argus-Press 1974
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NEBRASKA: Charles Starkweather
Charles Starkweather.
AP
NEVADA: Gerald and Charlene Gallego
Gerald Gallego.
Bettmann / Getty
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NEW HAMPSHIRE: Terry Peder Rasmussen
Terry Peder Rasmussen.
WMUR 9
New Jersey: Charles Edmund Cullen
Charles Edmund Cullen.
KATHY JOHNSON/AP Images
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New Mexico: David Parker Ray
David Parker Ray.
JAKE SCHOELLKOPF/AP Images
New York: Joel Rifkin
Joel Rifkin.
Bill Turnbull/ AP
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NORTH CAROLINA: Henry Louis Wallace
Henry Louis Wallace.
PETER A. HARRIS/AP Images
NORTH DAKOTA: Eugene Butler
North Dakota in the 1900s.
Smith Collection/Gado / Getty
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OHIO: Shawn Grate
Shawn Grate.
AP
OKLAHOMA: Nannie Doss
Nannie Doss.
AP
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OREGON: Randall Woodfield
I-5 in Oregon.
Smith Collection/Gado / Getty
PENNSYLVANIA: Harvey Robinson
Harvey Robinson.
Pennsylvania Department of Corrections
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RHODE ISLAND: Craig Price
Craig Price.
Andrew Dickerman/AP Images
SOUTH CAROLINE: Donald Henry Gaskins
Donald Henry Gaskins.
AP Images
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SOUTH DAKOTA: Robert Leroy Anderson
The South Dakota Supreme Court hears arguments during Anderson's death penalty appeal.
AP