Workplace shootings in the U.S. by victim count, as of August 2019

The deadliest workplace shooting in the United States took place in Edmond, Oklahoma in 1986 at a United States post office. There were 15 fatalities and six injuries in this shooting, and the incident inspired the American phrase “going postal.”

Workplace shootings

A mass shooting in the United States is generally defined as an incident where four or more people were injured or killed, though this can vary by source. It is sometimes difficult to identify the cause of workplace killings (also called rampage killings), although many involved disgruntled workers and some involve perpetrators with mental health problems.

Mass shootings in the United States

The vast majority of mass shootings in the United States are perpetrated by male assailants, and only three shootings have been carried out by women since 1982. Additionally, most of the weapons used in mass shootings were acquired through legal means, with only 16 incidents involving illegally obtained weapons since 1982.
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Number of victims of workplace shootings in the United States between 1982 and August 2019
United States Postal Service shooting (Edmond, Oklahoma, 1986) 15621
San Bernardino mass shooting (San Bernardino, California, 2015)142135
Virginia Beach municipal building shooting (Virginia Beach, Virginia, 2019)12416
El Paso Walmart mass shooting (El Paso, Texas, 2019)92736
Atlanta day trading spree killings (Atlanta, Georgia, 1999)91322
Standard Gravure shooting (Louisville, Kentucky, 1989) 91221
Hartford Beer Distributor shooting (Manchester, Connecticut, 2010) 9211
Goleta postal shootings (Goleta, California, 2006) 808
Accent Signage Systems shooting (Minneapolis, Minnesota, 2012) 718
Lockheed Martin shooting (Meridian, Mississippi, 2003)7815
ESL shooting (Sunnyvale, California, 1988) 7411
Wakefield massacre (Wakefield, Massachusetts, 2000) 707
Xerox killings (Honolulu, Hawaii, 1999) 707
Fort Lauderdale revenge shooting (Fort Lauderdale, Florida, 1996) 617
Atlantis Plastics shooting (Henderson, Kentucky, 2008) 617
Walter Rossler Company massacre (Corpus Christi, Texas, 1995) 606
T&T Trucking shooting (Bakersfield, CA, 2018)505
Harry Pratt Co. warehouse shooting (Aurora, Illinois, 2019)5611
Royal Oak postal shootings (Royal Oak, Michigan, 1991) 5510
Florida awning manufacturer shooting (Orlando, Florida, 2017)505
SunTrust bank shooting (Sebring, Florida, 2019505
Connecticut Lottery shooting (Newington, Connecticut, 1998) 516
Hotel shooting (Tampa, Florida, 1999) 538
Navistar shooting (Melrose Park, Illinois, 2001) 549
Capital Gazette shooting (Annapolis, Maryland, 2018)527
Caltrans maintenance yard shooting (Orange, California, 1997) 527
Chuck E. Cheese's killings (Aurora, Colorado, 1993) 415
R.E. Phelon Company shooting (Aiken, South Carolina, 1997) 437
Rural Ohio nursing home shooting (Kirkersville, Ohio, 2017)303
Rite Aid warehouse shooting (Perryman, MD, 2018)336
Edgewood businees park shooting (Edgewood, MD, 2017)336
Planned Parenthood clinic (Colorado Springs, Colorado, 2015)3912
San Francisco UPS shooting (San Francisco, CA, 2017)325
Fifth Third Center shooting (Cincinnati, Ohio, 2018)325
Excel Industries mass shooting (Hesston, Kansas, 2016)31417
Mercy Hospital shooting (Chicago, Illinois, (2018)303
Yountville veterans home shooting (Yountville, California, 2018)303
Pennsylvania supermarket shooting (Tunkhannock, PA, 2017)303
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