Type of Shooting | Location | Date | Summary | Dead | Injured | Weapons | Sources |
---|---|---|---|---|---|---|---|
Military | Chattanooga, Tennessee | 7/16/2015 | Mohammod Youssuf Abdulazeez, 24, a naturalized US citizen, opened fire at a Naval reserve center, and then at a military recruitment office where he killed four Marines and wounded a Navy service member, a police officer and another service member. He was then fatally shot by law enforcement officers. | 4 | 3 | 2 rifles including an AK-47-style weapon and 30-round magazines; 1 handgun | Reuters (July 16, 2015); New York Times (July 17, 2015); Wall Street Journal (July 20, 2015); New York Times (July 18, 2015); CNN (July 18, 2015); |
Military | Washington, D.C. | 9/16/2013 | Aaron Alexis, 34, a military veteran and contractor from Texas, opened fire in the Navy installation, killing 12 people and wounding 8 before being shot dead by police. | 12 | 8 | Sawed-off Remington pump-action shotgun, 2 boxes of shells; also a .45-caliber handgun. | New York Times (Sept. 17, 2013); CNN (Sep.t 18, 2013); FBI (Sept. 25, 2013) |
Military | Fort Hood, Texas | 11/5/2009 | Army psychiatrist Nidal Malik Hasan, 39, opened fire on an Army base. Hasan was injured during the attack and later arrested. Investigators recovered 214 rounds expended by Hasan at the shooting scene. | 13 | 32 | FN Five-Seven handgun, easy to fire rapidly with 5.7 X 28mm ammunition. | LA Times (Oct. 21, 2010); New York Times (Nov. 5, 2009); USA Today (Aug. 14, 2012) |
Military | Fairchild Air Force Base, Washington | 6/20/1994 | Former airman Dean Allen Mellberg, 20, opened fire inside a hospital at the Fairchild Air Force Base before he was shot dead by a military police officer outside. | 5 | 23 | One MAK-90 semiautomatic assault rifle, equipped with a 75-round drum. | LA Times (June 22, 1994); New York Times (June 22, 1994) |
Police | Baton Rouge, LA | 7/17/2016 | Gavin Long, a former Marine who served in Iraq, killed three police offers responding to a 911 call, and wounded three others. He was killed in a shoot-out with other officers responding to the scene. | 3 | 3 | Two assault-style rifles and one handgun | New York Times (July 17, 2016); Kansas City Star (July 18, 2016); Times Picayune (July 18, 2016); |
Police | Dallas, Texas | 7/7/2016 | Micah Xavier Johnson, a 25-year-old Army veteran, targeted police at a peaceful Black Lives Matter protest, killing five officers, injuring eleven others including two civilians. Law enforcement killed Johnson using a robot-delivered bomb. | 5 | 11 | Izhmash-Saiga 5.45mm high-powered variation of an AK-style military rifle, and semiautomatic handguns | New York Times (July 10, 2016); Wall Street Journal (July 11, 2016) |
Government | Tucson, Arizona | 1/8/2011 | Jared Loughner, 22, opened fire outside a Safeway during a constituent meeting with Congresswoman Gabrielle Giffords (D-Ariz.) before he was subdued by bystanders and arrested. | 6 | 13 | One Glock 19 semiautomatic handgun | Time (Jan. 15, 2011); Christian Science Monitor (Jan. 10, 2011); New York Times (Jan. 8, 2011) |
Government | Binghamton, New York | 4/3/2009 | Jiverly Wong, 41, fired 98 shots from two handguns in about one minute at an American Civic Association center for immigrants before committing suicide. | 13 | 4 | 45-caliber Beretta and a 9mm Beretta. | New York Times (Apr. 11, 2009); New York Times (Apr. 3, 2009) |
Government | Watkins Glen, New York | 10/15/1992 | John T. Miller, 50, killed four child-support workers in a county office building before turning the gun on himself. | 4 | 0 | 9mm semiautomatic handgun | New York Times (Oct. 17, 1992); New York Times (Oct. 16, 1992); New York Times (Oct. 24, 1992) |
Government | Alexandria, Virginia | 6/14/2017 | James T. Hodgkinson, 66, opened fire at a Congressional baseball practice in Virginia wounding Rep. Steve Scalise (R-Louis.) and four others. The gunman was killed in a gun battle with police. | 0 | 5 | 9 mm handgun and SKS 7.62 caliber rifle | Washington Post (Sept. 28, 2017);The Advocate (June 15, 2017); CNN (June 14, 2017) |
Public | Orlando, Florida | 6/12/2016 | Omar Mateen, 29, attacked the Pulse nightclub in Orlando in the early morning hours of June 12. He was killed by law enforcement after a prolonged standoff. | 49 | 53 | SIG-Sauer MCX assault rifle, Glock 17 handgun. | CNN (June 13, 2016) Mother Jones (June 13, 2016); WRBL.com (June 13, 2016); Slate (June 14, 2016) |
Public | Aurora, Colorado | 7/20/2012 | James Holmes, 24, opened fire in a movie theater and was later arrested outside. | 12 | 58 | Two .40 caliber handguns, one AR-15 assault rifle, one shotgun | New York Times (July 20, 2012); Mother Jones (July 20, 2012) |
Public | Seattle, Washington | 5/20/2012 | Ian Stawicki, 40, killed four patrons at a cafe, and another during a carjacking nearby, then shot himself as police closed in. (He died later that day in a Seattle hospital.) | 5 | 1 | Two .45 caliber semiautomatic handguns | NBC News (May 30, 2012); CBS News (June 1, 2012); USA Today (May 31, 2012) |
Public | Seal Beach, California | 10/14/2011 | Scott Evans Dekraai, 42, opened fire inside a hair salon. | 8 | 1 | Two semiautomatic handguns, one revolver | Laist (Oct. 31, 2011); OC Weekly (Oct. 24, 2011); Los Angeles Times (Oct. 13, 2011) |
Public | Carson City, Nevada | 9/6/2011 | Eduardo Sencion, 32, opened fire at an International House of Pancakes restaurant and later died from a self-inflicted gunshot wound. | 4 | 7 | Two assault rifles, including an AK-47 and a Nozinco MAK-90, and two handguns. | Huffington Post (Nov. 3, 2011); Las Vegas Sun (Sept. 6, 2011); |
Public | Seattle, Washington | 3/25/2006 | Kyle Aaron Huff, 28, opened fire at a rave afterparty in the Capitol Hill neighborhood of Seattle before committing suicide. | 6 | 0 | One assault weapon, one 12-gauge pistol grip shotgun and one handgun. | New York Times (Mar. 30, 2006); NBC News (Mar. 27, 2006) |
Public | Columbus, Ohio | 12/8/2004 | Nathan Gale, 25, gunned down former Pantera guitarist Dimebag Darrell and three others at a Damageplan show before being killed by police. | 4 | 2 | One 9 mm semiautomatic handgun | CBS News (Dec. 9, 2004); |
Public | Garden City, New York | 12/7/1993 | Colin Ferguson, 35, opened fire on an eastbound Long Island Rail Road train. | 5 | 18 | One 9-millimeter handgun and 160 rounds of additional ammunition | New York Times (Dec. 12, 1993) |
Public | Killeen, Texas | 10/16/1991 | George Hennard, 35, drove his pickup truck into a Lubyâs cafeteria and opened fire before committing suicide. | 22 | 23 | Two semiautomatic handguns that together held 32 bullets, one Ruger P-89 9mm pistol and one Glock 9mm. | New York Times (Oct. 18, 1991); New York Times (Oct. 20, 1991); Violence Policy Center |
Public | San Ysidro, California | 7/18/1984 | James Oliver Huberty, 41, opened fire in a McDonald's restaurant before he was shot dead by a police officer. | 21 | 19 | One 9mm Uzi model A Carbine, one 12-guage shotgun, and one Browning P-35 HiPower 9mm pistol. | San Diego Union-Tribune; Violence Policy Center |
Public | Dallas, Texas | 6/29/1984 | Abdelkrim Belachheb, 39, opened fire at an upscale nightclub after a woman rejected his advances. He was later arrested. | 6 | 1 | One 9mm handgun. | Worse Than Death: The Dallas Nightclub Murders and the Texas Multiple Murder Law by Gary M. Lavergne (Univ. of N. Texas Press, 2003); New York Times (June 30, 1984) |
Public | Las Vegas, Nevada | 10/1/2017 | Largest mass shooting in U.S. history: Stephen Paddock, 64, opened fire into a 22,000 person crowd at a country music festival from the windows of a hotel room in the Mandalay Bay Resort & Casino. | 59 | 500+ | 23 firearms found in the suite, including a bump stock that enables gun fire of hundreds of rounds per minute, a .223 caliber weapon and a .308 caliber weapon. All are believed to have been purchased legally. | Washington Post (Oct. 2, 2017); Wall Street Journal (Oct. 3, 2017); Wall Street Journal (Oct. 4, 2017); Wall Street Journal (Oct. 5, 2017); New York Times (Oct. 3, 2017); New York Times (Oct. 4, 2017); Salon (Oct. 2, 2017); CNN (Oct. 2, 2017) |
Public | New York, New York | 6/30/2017 | Dr. Henry Michael Bello, 45, a family physician, opened fire at Bronx-Lebanon Hospital Center before committing suicide. | 1 | 6 | AR-15 rifle. | Heavy (July 2, 2017); NYT (June 30, 2017) |
Public | Fort Lauderdale, Florida | 1/6/2017 | Esteban Santiago-Ruiz, 26, opened fire at victims heads at Fort Lauderdale-Hollywood International Airport, killing five, wounding six directly. | 5 | 6 | A Walther PPS 9mm semi-automatic pistol | NBC News (Jan. 7, 2017) |
Mall | Omaha, Nebraska | 12/5/2007 | Robert A. Hawkins, 19, opened fire inside Westroads Mall before committing suicide. | 8 | 5 | One AK-47 assault rifle used to spray 30 rounds. | Guardian (Dec. 6, 2007); NPR (Dec. 6, 2007); Los Angeles Times (Aug. 22, 2016) |
Mall | Burlington, Washington | 9/24/2016 | Arcan Cetin opened fire inside Cascade Mall in Burlington, Washington. | 5 | 0 | Ruger rifle with 25 round magazine | New York Times (Sept. 27, 2016) |
Home | Hialeah, Florida | 7/26/2013 | Pedro Vargas, 42, set fire to his apartment, killed six people in the complex, and held another two hostages at gunpoint before a SWAT team fatally shot him. | 6 | 0 | Glock 17 handgun | CBS News (July 27, 2013); Miami Herald (July 28, 2013) |
Home | Santa Monica, California | 6/7/2013 | John Zawahri, 23, armed with an assault rifle and high-capacity magazines, killed his brother and father at home and then headed to Santa Monica College, where he was eventually killed by police. | 5 | 3 | .223-caliber assault rifle and high capacity magazines holding 30 rounds each | CBS News (June 14, 2013) |
Home | Federal Way, Washington | 4/21/2013 | Dennis Clark III, 27, shot and killed his girlfriend in their shared apartment, and then shot two witnesses in the buildingâs parking lot and a victim in another apartment, before being killed by police. | 4 | 0 | .40-Caliber Tauros semiautomatic pistol and pistol grip Mossberg 500 pump shotgun with a four-round saddle | Seattle Times (Apr. 22, 2013) |
Home | Crandon, Wisconsin | 10/7/2007 | Off-duty sheriff's deputy Tyler Peterson, 20, opened fire inside an apartment after an argument at a homecoming party. He fled the scene and later committed suicide. | 6 | 0 | One assault rifle | Northwoods River News (Apr. 5, 2011) |
Home | Dallas, Texas | 9/10/2017 | Spencer Hight, 32, shot his wife and seven other individuals at a football watching party in their home, before being killed by police. | 8 | 0 | .38 caliber handgun and an AR-15 rifle | Fox 4 (Sept. 26, 2017); CBS News (Sept. 27, 2017) |
Places of Worship | Oak Creek, Wisconsin | 8/5/2012 | U.S. Army veteran Wade Michael Page, 40, opened fire in a Sikh gurdwara before he died from a self-inflicted gunshot during a shootout with police. | 6 | 3 | One Springfield Armory XDM with three 19-round magazines | Milwaukee-Wisconsin Journal Sentinel (Aug. 9, 2012); NBC News (Sept. 10, 2012); Los Angeles Times (Aug. 8, 2012); BBC news (Aug. 8, 2012). |
Places of Worship | Brookfield, Wisconsin | 3/12/2005 | Living Church of God member Terry Michael Ratzmann, 44, opened fire at a church meeting at a Sheraton hotel before committing suicide. | 7 | 4 | One 9mm handgun which fired 22 rounds | CBS News (Mar. 12, 2005); Fox News (Mar. 14, 2005) |
Places of Worship | Fort Worth, Texas | 9/15/1999 | Larry Gene Ashbrook, 47, opened fire inside the Wedgwood Baptist Church during a prayer rally before committing suicide. | 7 | 7 | Ruger P85 9mm pistol and .380 pistol | New York Times (Sept. 18, 1999); Violence Policy Center |
Places of Worship | Antioch, Tennessee | 9/24/2017 | Emanuel Kidega Samson, 25, shot a woman and seven others before accidentally shooting himself. | 1 | 7 | .40-caliber and 9mm handguns | The Tennessean (Sept. 25, 2017); CNN (Sept. 26, 2017) |
Schools & Colleges | Santa Barbara, California | 5/23/2014 | Elliot Rodger, 22, shot three people to death in the college town of Isla Vista near the University of California, Santa Barbara. He also shot others as he drove around town. He committed suicide in his car as police closed in. | 3 | 7 | SIG-Sauer P226 9mm semiautomatic pistol | Isla Vista Mass Murder May 23, 2014 Investigative Summary, Santa Barbara County Sheriffâs Office (Feb. 18, 2015) |
Schools & Colleges | Newtown, Connecticut | 12/14/2012 | Adam Lanza, 20, shot his mother dead at their home then drove to Sandy Hook Elementary school. He forced his way inside and opened fire, killing 20 children and six adults before committing suicide. | 26 | 2 | High-powered semiautomatic Bushmaster rifle | NBC News (Dec. 14, 2012); Washington Post (Dec. 15, 2012) |
Schools & Colleges | Oakland, California | 4/2/2012 | One L. Goh, 43, a former student, opened fire in a nursing classroom. He fled the scene by car and was arrested nearby a few hours later. | 7 | 3 | One semiautomatic handgun | SFGate (Apr. 5, 2012); Mercury News (Apr. 2, 2012); CBS News (Apr. 3, 2015) |
Schools & Colleges | DeKalb, Illinois | 2/14/2008 | Steven Kazmierczak, 27, opened fire in a lecture hall, then shot and killed himself before police arrived. | 5 | 21 | 9mm Glock semiautomatic pistol firing 50 rounds from Glock and shotgun | Huffington Post (Feb. 16, 2008); NBC News (Feb. 16, 2008); Report of the February 14, 2008 Shootings at Northern Illinois University, Northern Illinois University |
Schools & Colleges | Blacksburg, Virginia | 4/16/2007 | Virginia Tech student Seung-Hui Cho, 23, opened fire on his school's campus killing professors and students before committing suicide. | 32 | 24 | Two semiautomatic handguns | New York Times Apr. 24, 2007); Mental Health reporting, Law Center to Prevent Gun Violence |
Schools & Colleges | Lancaster County, Pennsylvania | 10/2/2006 | Charles Carl Roberts, 32, shot 10 young girls in a one-room schoolhouse in Bart Township, killing 5, before taking his own life. | 4 | 7 | One semiautomatic handgun, one rifle, one shotgun | Times-News (Oct. 7, 2006); Fox News (Oct. 3, 2006) |
Schools & Colleges | Red Lake, Minnesota | 3/21/2005 | Jeffrey Weise, 16, murdered his grandfather, who was a police officer, and his grandfatherâs girlfriend. Weise then drove his grandfather's squad car to Red Lake Senior High School and opened fire on the reservation campus, killing another seven people before committing suicide. | 9 | 5 | Two semiautomatic handguns, one shotgun | Washington Post (Mar. 25, 2005); Fox News (Mar. 23, 2005) |
Schools & Colleges | Littleton, Colorado | 4/20/1999 | Eric Harris, 18, and Dylan Klebold, 17, opened fire throughout Columbine High School before committing suicide. | 13 | 24 | One semiautomatic assault handgun, one assault rifle, two shotguns | USA Today (Apr. 14, 2009); Slate (Apr. 20, 2004) |
Schools & Colleges | Springfield, Oregon | 5/21/1998 | After he was expelled for having a gun in his locker, Kipland P. Kinkel, 15, a freshman at Thurston High, killed his parents at home and two students at school. | 4 | 25 | .22 caliber semiautomatic Ruger rifle with 50 round clip, 9mm Glock pistol and .22 caliber Ruger pistol. | Chronology: Kip Kinkelâs life and the events leading up to the horror of May 20-21, 1998, PBS; CNN (May 21, 1998) |
Schools & Colleges | Jonesboro, Arkansas | 3/24/1998 | Mitchell Scott Johnson, 13, and Andrew Douglas Golden, 11, two juveniles, ambushed students and teachers as they left the school; they were apprehended by police at the scene. | 5 | 10 | Remington 742 .30-6 rifle; .30 M1 Carbine replica; Smith & Wesson .38 revolver; Ruger Security Six .357 | Violence Policy Center |
Schools & Colleges | Stockton, California | 1/17/1989 | Patrick Purdy, 26, an alcoholic with a police record, launched an assault at Cleveland Elementary School, where many young Southeast Asian immigrants were enrolled. Purdy killed himself with a shot to the head. | 5 | 29 | Semiautomatic AK-47 rifle loaded with 75 bullets | Recordnet.com (Jan. 18, 2009); Lodi News-Sentinel (Oct. 12, 1989); Time (June 24, 2001) |
Schools & Colleges | Rockford, Washington | 9/13/2017 | Caleb Sharpe, 15, took these weapons without permission from his father and killed one student and opened fire at a group of others. | 1 | 3 | AR-15 semi-automatic rifle and .32 caliber handgun | The Spokesman-Review (Sept. 27, 2017); Chicago Tribune (Sept. 14, 2017) |
Workplace | Hesston, Kansas | 2/25/2016 | Cedric L. Ford, who worked as a painter at a manufacturing company, shot victims from his car and at his workplace before being killed by police at the scene. | 3 | 14 | AK-47 assault rifle | New York Times (Feb. 25, 2016); Washington Post (Feb. 26, 2016); FOX4 News (Feb. 26 2016) |
Workplace | Kalamazoo County, Michigan | 2/20/2016 | Jason B. Dalton, a driver for Uber, apparently selected his victims randomly as he went on a rampage over several hours in three different locations. 30 or more rounds were fired. | 6 | 2 | 9mm semiautomatic handgun | New York Times (Feb. 21, 2016); MLive.com (Feb. 24, 2016); MLive.com (Feb. 21, 2016) |
Workplace | San Bernardino, California | 12/2/2015 | Syed Rizwan Farook left a Christmas party held at Inland Regional Center, later returning with Tashfeen Malik. The two opened fire, killing 14 and wounding 21, ten critically. The two were later killed by police as they fled in an SUV. | 14 | 21 | Two .223 assault rifles and two semi-automatic pistols were used in the attack. In the suspects' car were an additional 1,400 rounds for the rifles and 200 for the handguns. | Mother Jones (Dec. 2, 2015); CNBC (Dec. 3, 2015); New York Times (Dec. 3, 2015) |
Workplace | Minneapolis, Minnesota | 9/27/2012 | Andrew Engeldinger, 36, upon learning he was being fired, went on a shooting rampage, killing the business owner, three fellow employees, and a UPS driver. He then killed himself. | 5 | 1 | One 9mm Glock semiautomatic handgun | StarTribune (Sept. 29, 2012) |
Workplace | Norcross, Georgia | 2/22/2012 | Jeong Soo Paek, 59, returned to a Korean spa from which heâd been kicked out after an altercation. He gunned down two of his sisters and their husbands before committing suicide. | 4 | 0 | One .45 caliber handgun | Gwinnett Daily Post (Feb. 22, 2012); CBS News (Aug. 24, 2012); |
Workplace | Manchester, Connecticut | 8/3/2010 | Omar S. Thornton, 34, shot up his Hartford Beer Distributor workplace after facing disciplinary issues, then committed suicide. | 8 | 2 | Two 9mm handguns | CBS News (Aug. 4, 2010); Fox News (Aug. 4, 2010) |
Workplace | Goleta, California | 1/30/2006 | Former postal worker Jennifer Sanmarco, 44, shot dead a former neighbor then drove to the mail processing plant where she used to work. Inside, she opened fire, killing six employees before committing suicide. | 7 | 0 | 15 round, 9mm Smith & Wesson model 915 | NBC News (Feb. 3, 2006); |
Workplace | Meridian, Mississippi | 7/8/2003 | Assembly line worker Douglas Williams, 48, opened fire at his Lockheed Martin workplace in a racially motivated attack before committing suicide. | 5 | 9 | One semiautomatic rifle, and one 12-gauge shotgun | New York Times (July 9, 2003); New York Times (July 16, 2003) |
Workplace | Wakefield, Massachusetts | 12/26/2000 | Michael McDermott, 42, opened fire on co-workers at Edgewater Technology and was later arrested. | 7 | 0 | One AK-47 assault rifle (49 shots), shotgun (69 shots) and semiautomatic pistol. | Time (Dec. 31, 2000); New York Times (Dec. 27, 2000); Violence Policy Center |
Workplace | Tampa, Florida | 12/30/1999 | Hotel employee Silvio Leyva, 36, gunned down four coworkers at the Radisson Bay Harbor Inn before killing a woman outside. | 5 | 3 | Lorcin 9mm pistol and a Charter Arms revolver. | Violence Policy Center |
Workplace | Honolulu, Hawaii | 11/2/1999 | Byran Koji Uyesugi, 40, a Xerox service technician, opened fire inside the building with a 9mm Glock | 7 | 0 | One 9mm Glock 17 model. | Violence Policy Center |
Workplace | Atlanta, Georgia | 7/29/1999 | Day trader Mark O. Barton, 44, who had recently lost a substantial sum of money, went on a shooting spree at two day-trading firms. | 9 | 13 | Glock model 17 9mm pistol and a Colt 1911A1.45 pistol | Independent (July 30, 1999); Violence Policy Center |
Workplace | Newington, Connecticut | 3/6/1998 | Lottery worker Matthew Beck, 35, gunned down four bosses over a salary dispute before committing suicide. | 4 | 0 | One 9mm Glock | New York Times (Mar. 7, 1998); |
Workplace | Orange, California | 12/18/1997 | Former Caltrans employee Arturo Reyes Torres, 41, opened fire at a maintenance yard after he was dropped for allegedly selling government materials he'd stolen from work. He was killed by police. | 4 | 2 | 7.62mm assault rifle | Los Angeles Times (Dec. 20, 1997); Violence Policy Center; The Union Democrat (Dec. 19, 1997) |
Workplace | Aiken, South Carolina | 9/15/1997 | Ex-con Hastings Arthur Wise, 43, opened fire at the R.E. Phelon Company in retaliation for being fired after an argument with a supervisor. | 4 | 3 | One 9mm semiautomatic pistol | Violence Policy Center; August Chronicle (Sept. 18, 1997) |
Workplace | Fort Lauderdale, Florida | 2/9/1996 | Fired city park employee Clifton McCree, 41, opened fire on former coworkers he called âracist devilsâ inside their municipal trailer. | 5 | 1 | One 9mm Glock | New York Times (Feb. 11, 1996); SunSentinel (Feb. 10, 1996) |
Workplace | Corpus Christi, Texas | 4/3/1995 | Disgruntled former metallurgist James Daniel Simpson, 28, opened fire throughout the Walter Rossler Company where he had worked. | 5 | 0 | One 9mm semiautomatic pistol | New York Times (Apr. 4, 1995) |
Workplace | Louisville, Kentucky | 9/14/1989 | Joseph T. Wesbecker, 47, gunned down eight people at his former workplace before committing suicide. | 7 | 13 | Chinese-made AK-47 semiautomatic rifle, 2 semiautomatic MAC-11 pistols and a SIG-Sauer 9mm pistol | Lexington Herald-Leader (Jan. 9, 1990); New York Times (Sept. 16, 1989) |
Workplace | Edmond, Oklahoma | 8/20/1986 | Postal worker Patrick Sherrill, 44, opened fire at a post office before committing suicide. | 14 | 6 | Three semiautomatic pistols | Edmund Post Office Massacre, Oklahoma Historical Society (2009); NY Daily News (Aug. 15, 2010) |
Workplace | Orlando, Florida | 6/5/2017 | Former soldier John Robert Neumann Jr., 45, opened fire on his former colleagues and himself. | 5 | 0 | Semi-automatic handgun | Heavy (June 13, 2017); New York Times (June 5, 2017) |
Workplace | San Francisco, California | 6/14/2017 | Jimmy Lam, 38, opened fire on his coworkers at UPS before killing himself. | 3 | 5 | MAC-10 pistol equipped with an extended 30-round magazine and a semi-automatic handgun | Los Angeles Times (June 15, 2017); US News (June 23, 2017) |
Workplace | Eaton Township, Pennsylvania | 6/8/2017 | Randy Stair, 24, opened fire on coworkers at Weis grocery before killing himself. | 3 | 0 | Two pistol grip pump action shotguns | Heavy (June 16, 2017); Washington Post (June 9, 2017) |