Labrant Dennis

1996

Lakhvir Kaur Singh

"The Curry Killer"

2008 - 2009

Lam Kor-wan

"The Jars murderer / The Rainy Night Butcher / The Rainy Night Killer / The Hong Kong Butcher"

1982

Lam Kwok-wai

"The Tuen Mun Rapist"

1992 - 1993

Lam Luong

2008

Lamont Claxton Underwood

"L. C."

1993 - 1994

Lamont D. Reese

"Mont"

1999

Lance Collin Shockley

2005

Landon Daniel May

2001

Lao Rongzhi

"Chen Jia / Gege / Shen Lingqiu / Xue Li / Hong Yejiao"

1996 - 1999

Larissa Schuster

"The Acid Lady"

2003

Larme Price

"Thrill Killer / Sept. 11 Killer / Saturday killer / .40-caliber killer"

2003

Laron Ronald Williams

1978 - 1981

Larry Allen Hayes

1999

Larry Allen Stout

1987

Larry C. Williams

1979 - 1980

Larry Dale Potts

1987

Larry Davis

"Adam Abdul-Hakeem"

1983 - 1986

Larry Dean Bright

"The Bonecrusher"

2003 - 2004

Larry DeWayne Hall

"The Grave Digger"

1993

Larry Donnell Andrews

"Donnie"

1986

Larry Eugene Mann

"Larry E. Mann"

1980

Larry Eugene Moon

1984

Larry Eyler

"The Highway Killer / The Interstate Killer"

1982 - 1984

Larry Gene Ashbrook

1999

Larry Gene Bell

1985

Larry Gene Heath

1981

Larry Gilbert

1977

Larry Grant Lonchar

1986

Larry Green

"Death Angel"

1972 - 1974

Larry Griffin

1980

Larry Keith Robison

1982

Larry Lamont White

"Larry Griffin"

1983

Larry Lee Ranes

"Monk Steppenwolf"

1964

Larry Matthew Puckett

1995

Larry McKay

1981

Larry Ralston

1975 - 1977

Larry Ray Swearingen

1998

Larry Smith

1978

Larry Tacklyn

1973

Larry Wayne White

1977

Larry Wayne Wooten

1996

Lars Roger Karlsson

2001

Latonia Bellamy

2010

Laura Jeanne Taylor

1992

Laurence Shirley

"Lord Ferrers"

1760

Laurie Dann

1988

Lavinia May Burnett

1845

Lawrence Joey Smith

"Joey Smith"

1999

Lawrence Keith Libberton

1981

Lawrence Paul Mills III

2017

Lawrence Raymond Reynolds Jr.

1994

Lawrence Russell Brewer

1998

Lawrence Sigmund Bittaker

"Tool Box Killer"

1979

Lawrence William Lee Jr.

"Larry Lee"

1986

Lawrence William Moore

1981

Lawrence Yunkin

"Butch"

1991

Lawrencia Ann Bembenek

"Bambi Bembenek / Jennifer Gazzana / Laurie Bembenek"

1981

Lawrencia Bembenek

"Bambi"

1981

Laxma G. Reddy

1997

Lázaro Barbosa de Sousa

2007 - 2021

Lazarus Tshidiso Mazingane

"Nasrec Serial Killer"

1995 - 1998

Lazslo Varga

1948

Le Duc Tan

1974

Lê Thanh Vân

"The Cyanide Witch / The Cyanide Killer / The Poison Witch / Lee Ly Lan / Lâm Anh Đào"

1998 - 2001

Léa Papin

1933

Leamon White

1987

Lee Albert Smith

1944

Lee Andrew Taylor

1999

Lee Boyd Malvo

"John Lee Malvo / Malik Malvo / The Beltway Sniper / The D.C. Sniper"

2002

Lee Chi-hang

1982

Lee Chun-jae

1986 - 1994

Lee Ford

2000

Lee Ho-seong

2008

Lee Monroe Betterton

1904 - 1919

Lee Roy Martin

"The Gaffney Strangler"

1967 - 1968

Lee Van Glahn

2001 - 2002

Leigh Anthony Bridgart

"James Ryan O'Neill"

1975

Leigh Robinson

"Big Leigh"

1968 - 2008

Leith McDonald Ratten

1970

Lem Davis Tuggle Jr.

1971 - 1983

Lemaricus Devall Davidson

"Slim"

2007

Lemuel Prion

1992

Lemuel Warren Smith

1958 - 1981

Lena Baker

1944

Lenard James Philmore

1997

Leo Edward Perry Jr.

1997

Leo George O'Donnell

1917

Leo Gordon Little III

"Li’l Crazy"

1998

Leo Held

1967

Leon David Dorsey IV

"Pistol Pete / The Blockbuster Killer"

1994

Leon Davis Jr.

2007

Leon Frank Czolgosz

1901

Leon Jermain Winston

2002

Leon Jerome Moser

1985

Leon Rutherford King

1978

Leonard Edward Smith

1984

Leonard Ewing Scott

"Ewing Scott"

1955

Leonard John Fraser

"The Rockhampton Rapist"

1998 - 1999

Leonard Keith Lawson

"Len"

1962

Leonard Lake

"The Boneyard Monster"

1983 - 1985

Leonard Marvin Laws

1980

Leonard Melvin Shockley

1958

Leonard Patrick Gonzalez Jr.

2009

Leonard Patrick Gonzalez Sr.

2009

Leonard Peltier

"Tate WiWikuwa / Gwarth-ee-lass"

1975

Leonard Uresti Rojas

1994

Leonard Young

1999

Leonarda Cianciulli

"Soap-Maker of Correggio"

1939

Leonardas Zavistonovičius

1998

Leonardo Morita

1995

Leonel Torres Herrera

1981

Léopold Dion

1963

Leopoldo Narvaiz Jr.

1988

Leroy Dean McGill

2002

Leroy Hall Jr.

"Lee Hall"

1991

Leroy Linden

1953

Leroy Pooler

1995

Leroy Snyder

"Duke"

1969

Leroy White

1988

Lesley Eugene Warren

"The Babyface Killer"

1987 - 1990

Leslie Alfred Camilleri

1997

Leslie Allen Williams

1991 - 1992

Leslie Dale Martin

1991

Leslie George Stone

1937

Leslie Irvin

"The Mad Dog Killer / Joe Goebbels"

1954 - 1955

Leslie Leon Burchart

"The Golden Years Murderer"

1994 - 1996

Leslie Louise Van Houten

"Louella Alexandria / Leslie Marie Sankston / Linda Sue Owens / Lulu"

1969

Leslie Lowenfield

1982

Leslie Torres

1988

Lester Ford

"Justice"

1991

Lester Harrison

"Sylvester B. Hudson / James Bonde"

1951 - 1973

Lester Kills On Top

1987

Lester Leroy Bower Jr.

1983

Lester Warfel Brockelhurst Jr.

"The Crime Tourist / The Touring Slayer"

1937

Lester Wayne Virgil

1992

Leszek Jacek Pękalski

"The Vampire of Bytów"

1984 - 1992

Leszek Pekalski

"The Vampire of Bytów"

1984 - 1992

Letalvis Darnell Cobbins

"Rome"

2007

Leung Ying

1928

Levi Aron

2011

Levi Bellfield

"Yusuf Rahim / The Bus Stop Stalker / The Bus Stop Killer / The Hammer Man"

2002 - 2004

Levi Boone Helm

"The Kentucky Cannibal"

1850 - 1864

Lewis Eugene Gilbert II

1994

Lewis Hutchinson

"Mad Master / Mad Doctor of Edinburgh Castle"

1760 - 1773

Lewis Lent Jr.

1990 - 1994

Lewis Lyons

1903

Li Hao

2009 - 2011

Li Hsing-ju

1959

Li Pingping

1995 - 2003

Li Wenxiang

"Guangzhou Ripper"

1991 - 1996

Li Yuhui

1998

Li Zhongren

2012

Liam James Reid

"Mont"

2007

Liang Hsin-teng

1993

Licho Escamilla

2001

Lin Yu-ju

"The Nantou Poisoning Wife / The Puli Poisoning Wife"

2008 - 2009

Linda Anita Carty

2001

Linda Anita Carty

2001

Linda Calvey

"The Black Widow"

1986 - 1991

Linda Darlene Kasabian

"Linda Chiochios"

1969

Linda Henning

1999

Linda Laura Hazzard

"Starvation Doctor"

1908 - 1912

Linda Lou Charbonneau

2001

Linda Mulhall

"Scissor Sister"

2005

Lindsay Hoani Beckett

1997

Lindsay Robert Rose

1984 - 1994

Lindsey Robert Rose

1984 - 1994

Lino Renzi

2013

Linwood Earl Briley

1979

Linwood Earl Forte

"The Nightstalker"

1990

Lionel Alexander Tate

1999

Lionell Gonzales Rodriguez

1990

Lisa Ann Coleman

2004

Lisa Donlon

2010

Lisa Jo Chamberlin

2004

Lisa Marie Montgomery

2004

Lisa Michelle Lambert

1991

Lisl Auman

1997

Liu Zhanjin

"Wuyang"

2000

Liz Carroll

2006

Ljubiša Bogdanović

2013

Lloyd Gomez

"Harry Jenks / The Phantom Hobo Killer / The Hobo Jungle Killer"

1950 - 1951

Lloyd Massey II

2000

Lloyd Maurice Crosbie

2001

Lock Ah Tam

1925

Lois Germaine Josephine Zerwas Jurgens

1965

Lolita Barthel

1955

Long Zhimin

1983 - 1985

Lonnie David Franklin Jr.

"Grim Sleeper / 25 Auto Killer"

1984 - 2007

Lonnie Wayne Pursley

1997

Lonnie Weeks Jr.

1993

Loran Kenstley Cole

1994

Loren Herzog

"Speed Freak Killer"

1984 - 1998

Lorenzo Bahena Sanchez

1999

Lorenzo Fayne

1989 - 1993

Lorenzo Jerome Gilyard Jr.

"The Kansas City Strangler"

1977 - 1993

Lorenzo Morris

1990

Lorenzo Silva

"Sol"

1999

Lori Ryan Daybell

"Doomsday Mom / Cult Mom"

2019 - 2020

Lorne Joe Acquin

1977

Lorraine Thorpe

2009

Louay Omar Mohammed al-Taei

"Doctor Death"

2005 - 2006

Louis Bernard Gaskin

"The Ninja Killer"

1986 - 1989

Louis Buchalter

"Lepke"

1935 - 1936

Louis Castro Perez

1998

Louis Craine

"The Southside Slayer"

1984 - 1987

Louis D. Hastings

1983

Louis Joe Truesdale

1980

Louis Jones Jr.

1995

Louis Kenneth Neu

"Kenneth Neu"

1933

Louis Marie Joseph Voisin

1917

Louis Michel Rieul Billon

"Watchmaker Billon"

1789

Louis Till

1945

Louis Van Schoor

"Apartheid Killer / Dum-Dum Killer"

1986 - 1989

Louis Wagner

"The Smuttynose Murderer"

1873

Louis Young

1945

Louis-Amadeo Brihier Lacroix

"Chilean Robin Hood / Émile Dubois / Emilio Morales / Emile Murraley"

1882 - 1906

Louisa May Merrifield

"The Blackpool Poisoner"

1953

Louise Peete

"The Deadly Housekeeper"

1912 - 1944

Louise Vermilya

"Black Widow"

1893 - 1911

Lovelle Mixon

2009

Lowell Edwin Amos

"The Black Widower"

1979 - 1994

Lowell Lee Andrews

"The Nicest Boy in Wolcott"

1958

Loyd Winford Lafevers

1985

Ľubomír Harman

2010

Lucien Carr

1944

Lucien Léger

"The Strangler"

1964

Lucious Boyd

1993 - 1999

Lucky Ward

"Lawayne Jackson"

2010

Lucy Letby

2015 - 2016

Ludwig Tessnow

"The Monster of Rügen / The Mad Carpenter of Rügen"

1898 - 1901

Luigi Chiatti

"The Monster of Foligno"

1992 - 1993

Luigi Lucheni

1898

Luis Alfredo Garavito Cubillos

"The Beast / Goofy / Conflict / Bonifacio Morera Lizcano"

1992 - 1999

Luis Bracamontes

2014

Luis Cervantes Salazar

1997

Luis E. Reyes

"Little Louie"

1996

Luis Gregorio Ramírez Maestre

"The Monster of Tenerife"

2010 - 2012

Luis Ignacio Vásquez Villenas

"Lucho Plátano"

2022 - 2023

Luis José Monge

1963

Luis L. Ramirez

1998

Luís Miguel Militão Guerreiro

"Monster of Fortaleza"

2001

Luis Morine Mata

1977

Luísa de Jesus

"The Foundling Wheel Killer"

1760 - 1772

Luiz Henrique de Lima

2023

Luka Rocco Magnotta

"Vladimir Romanov / Mattia Del Santo / Jimmy / Justin / Angel / Canadian Psycho / Butcher of Montréal / Kirk Trammel"

2012

Luke Muir Mitchell

2003

Luke Woodham

1997

Lulonda Lynn Flett

2011

Luo Shubiao

"The Rainy Night Butcher"

1977 - 1994

Lyda Catherine Ambrose

1917 - 1920

Lyda Southard

"Lyda Anna Mae Trueblood / Flypaper Lyda / The Black Widow"

1915 - 1920

Lydia Echevarría

1983

Lydia Sherman

"The Derby Poisoner"

1863 - 1877

Lyle Richard Brummett

"Lyle Richard Stone"

1975 - 1976

Lynda Cheryle Lyon Block

1993

Lyndon Fitzgerald Pace

1988 - 1989

Lyndon James McLeod

"Roman McClay"

2021

Lyndon Mosley

1997

Lyndsey Dawn Fiddler

2010

Lynwood Crumpler Drake III

"Crazy Jim"

1992