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Deadliest Mass Shootings
Los Angeles County

Monterey Park, Star Ballroom Studio, 2023

People visit memorial outside the Star Ballroom Studio in Monterey Park after the 2023 mass shooting incident. Los Angeles Almanac photo.

NOTE: The Almanac elects not to name perpetrators in any of these incidents, so as not to offer historical recognition by name. We leave that to news sources. Rather, we chose to name and remember the victims.

Incident Location Date Number Killed* Victims & Ages Number Injured Description
2023 Monterey Park Shooting Monterey Park Jan 22, 2023 12 Ming Wei Ma, 72; My Nhan, 65; Diana Man Ling Tom, 70; Xiujuan Yu, 57; Valentino Marcos Alvero, 68; Yu-Lun Kao, 72; Hongying Jian, 62; Wen-Tau Yu, 64; Chia Ling Yau, 76; Muoi Dai Ung, 67; Lilan Li, 63 9 Shooting at Lunar New Year celebration. Shooter took own life.
2008 Covina Shooting Covina Dec 24, 2008 10 Sylvia Ortega Pardo, 43; Alicia Sotomayor Ortega, 70; Joseph S. Ortega, 79; Charles Ortega, 50; Cheri Lynn Ortega, 45; James Ortega, 52; Teresa Ortega, 52; Alicia Oregea Ortiz, 46; Michael Andre Ortiz, 17 0 Domestic family violence. Shooter took own life.
1973 South Los Angeles Shooting South Los Angeles Apr 22, 1973 7 Diane Lore Andrea, 22; Raleigh "Butch" Henderson, 33; Otha Leavitt, 53; Smitty B. Sneed, 58; Jevie D. Thompson, 57; Aileen Well, 13; Versell Bennet, 58 (accidentally killed by police) 9 Shooting spree sparked by conflict with a family friend. Shooter injured and captured by police.
2013 Santa Monica Shooting Santa Monica Jun 7, 2013 6 Samir Zawahri, 55; Christopher Zawahri, 24; Debra Lynn Fine, 50; Margarita Gomez, 68; Carlos Navarro Franco, 68; Marcela Diaz Franco, 26 2 School shooting. Shooter killed in shootout with police.
2011 Southern California Edison Shooting Irwindale Dec 16, 2011 3 Henry Serrano, 56; Robert Lindsay, 53 2 Workplace shooting. Shooter took own life.
Incident Location Date Number Killed* Victims & Ages Number Injured Description
1984 South Park Los Angeles Shooting Los Angeles South Park Feb 24, 1984 3 Shala Eubanks, 10; Carlos Lopez, 24 12 Shooting at elementary school. Unclear motive. Shooter took own life.
2019 Saugus High School Shooting Santa Clarita Nov 14, 2019 2 Dominic Blackwell, 14; Gracie Anne Muehlberger, 15 5 School shooting. Shooter took own life.
1985 Los Angeles Chinatown Church Shooting Los Angeles Chinatown Jun 30, 1985 2 Gregory R. Owyang, 36; Li Fook Kong, 58 0 Church shooting. Shooter killed by off-duty police officer.
1999 Los Angeles Jewish Community Center Shooting Granada Hills & Chatsworth Aug 10, 1999 1 Joseph Ileto, 39 (U.S. Postal worker) 5 Anti-Semitic/racist shooting by Aryan Nations member. Shooter surrendered to police.

* Includes death of shooter, if killed by self-infliction or police, in course of the incident. Here, shooter's name is not included among those of victims.

Other Mass Killings in Los Angeles County History

Incident Location Date Number Killed Victims & Ages Number Injured Description
Tate-LaBianca Murders Beverly Hills & Los Feliz Aug 8-10, 1969 8 Abigail Folger, Wojciech Frykowski, Steven Parent, Jay Sebring, Sharon Tate, Paul Richard Polanski (unborn), Leno LaBianca, Rosemary LaBianca 0 Home invasions with murderous intent.
1871Chinese Massacre Downtown Los Angeles Oct 24, 1871 At least 18 Ah Wing, Dr. Chee Long "Gene" Tong, Chang Wan, Leong Quai, Ah Long, Wan Foo, Tong Won, Ah Loo, Day Kee, Ah Waa, Ho Hing, Lo Hey, Ah Won, Wing Chee, Wong Chin, Johnny Burrow, Ah Cut, Wa Sin Quai Unk Racial violence by mob.
Possible Early Massacre of Indians Carson Circa 1680-1810 At least 20 Unidentified native people Unk Signs of violent deaths, unknown perpetrators, cause or reason.