The region's three deadliest mass shootings since 2006 were at a university and two workplaces

A shooting Thursday at Silver Rail Elementary School in Bend, Oregon, killed three children and a teacher, police said. Across D.C., Maryland and Virginia, the deadliest since 2006 were attacks at a university and two workplaces. Of the 22 confirmed, 14 happened in homes. By jurisdiction, Virginia had 12, Maryland eight and the District two.
Since 2006, at least 22 shootings in D.C., Maryland and Virginia have killed four or more people, not counting the shooter, a Washington Clarion review of news reports and police records found. They killed 137 people and wounded at least 37 more.
At least one more such shooting appears in other databases or FBI homicide records but could not yet be confirmed in two independent sources, so it is not counted here.
There is no single definition of a mass shooting. The AP/USA Today/Northeastern University database counts killings of four or more people, the threshold used here. The Gun Violence Archive counts shootings in which four or more people are shot, killed or wounded, a far larger number. Mother Jones counts only public attacks.
Family killings were the largest group
Family killings, in which most victims were the shooter's relatives or partners or a partner's household, numbered nine. Public attacks numbered five. Another crime, such as a robbery, a drug deal or a fight between rival groups, was behind two cases. The remaining six cases were other or unsolved.
The deadliest
The deadliest was at Virginia Tech in Blacksburg in 2007, where 32 people were killed. The Washington Navy Yard attack in 2013 and the 2019 shooting at a Virginia Beach city government building each killed 12.
Around Washington
Of the 22, at least eight happened in the District or the parts of Maryland and Virginia The Washington Clarion covers.
At schools
One of the 22 happened at a school or college: Blacksburg, Virginia, April 16, 2007 (university, 32 killed).
The bigger picture
Mass shootings are a small share of gun deaths. In 2024, 148 District residents died from gunshot wounds, according to the Centers for Disease Control and Prevention: 19.7 per 100,000 residents after adjusting for age, against 12.8 nationally. Of those deaths, 13 were suicides and 134 were homicides.
In 2024, 716 Maryland residents died from gunshot wounds, according to the Centers for Disease Control and Prevention: 11.6 per 100,000 residents after adjusting for age, 38th highest among the 50 states, against 12.8 nationally. Of those deaths, 302 were suicides and 404 were homicides.
In 2024, 1,153 Virginia residents died from gunshot wounds, according to the Centers for Disease Control and Prevention: 12.8 per 100,000 residents after adjusting for age, 28th highest among the 50 states, the same as the national rate. Of those deaths, 729 were suicides and 395 were homicides.
How we did this
The Washington Clarion counted every shooting from Jan. 1, 2006, through Oct. 15, 2026, in which four or more people were killed within 24 hours, not counting the shooter, and gunfire caused most or all of the deaths. Victims who died within seven days of the attack are counted; unborn children are not. A shooting that crossed state lines is counted in the state where most victims died. Each case was confirmed in at least two independent sources: news reports, statements from police or prosecutors, court records or, in some cases, the FBI's homicide records, which police agencies file for each killing. Some dates are when the victims were found. We started from leads in the AP/USA Today/Northeastern University Mass Killing Database, the Mother Jones and Stanford mass-shooting databases, the Gun Violence Archive and Wikipedia's yearly lists, then searched news archives for cases those lists missed. Leads we could not yet confirm in two sources are not counted, so the totals are minimums. Cases are grouped as family killings (the victims were mainly the shooter's relatives or partners), killings tied to another crime such as a robbery or drug dispute, public attacks, and other or unsolved cases.
Sources: news reports and, where available, police, prosecutor and court records for each case, listed below. Gun deaths: CDC, Stats of the States and CDC WONDER (Underlying Cause of Death, 2024 final).
Every case
- Oct. 5, 2006: Frederick County, near Winchester, Virginia, home. 4 killed. The Washington Post, FBI Supplementary Homicide Reports, Frederick County Sheriff's Office record
- April 16, 2007: Blacksburg, Virginia, university. 32 killed, 17 wounded. official record, Virginia Tech Review Panel report to the Governor, Virginia Tech
- Nov. 22, 2007: Unity, Maryland, custody exchange. 4 killed. Associated Press, Washington Examiner
- Feb. 1, 2008: Cockeysville, Maryland, home. 4 killed. CBS News / Associated Press, ABA Journal
- April 18, 2009: Middletown, Maryland, home. 4 killed (found April 18). Associated Press, Irish Examiner, FBI homicide records
- Jan. 19, 2010: Appomattox County, Virginia, home. 5 killed (within 24 hours; eight in all, as authorities said three relatives were killed about two days earlier). CBS News / Associated Press, WWBT NBC12, FBI homicide records
- March 30, 2010: Washington, D.C., two linked shootings minutes apart. 4 killed, 6 wounded. U.S. Justice Department, Fox News, WJLA
- Aug. 6, 2010: Lanham, Maryland, home. 4 killed. Patch, CBS Baltimore / Associated Press
- Aug. 27, 2011: Chesterfield County, Virginia, home. 4 killed (one of them in Bucks County, Pa.), 1 wounded. NBC News, WHYY
- Dec. 15, 2011: Gargatha, Virginia, home. 4 killed. CNN, CBS News / Associated Press, FBI homicide records
- Sept. 16, 2013: Washington, D.C., Navy Yard. 12 killed, 3 wounded. official record, NBC Washington, CNN
- Aug. 3, 2014: Culpeper County, Virginia, home. 4 killed. NBC4 Washington, CBS News / Associated Press
- Jan. 27, 2016: Chesapeake, Virginia, home. 5 killed. NBC News, Daily Press
- June 28, 2018: Annapolis, Maryland, newsroom. 5 killed. Maryland Matters, The Baltimore Sun
- May 31, 2019: Virginia Beach, Virginia, city government building. 12 killed, 5 wounded. City of Virginia Beach, Associated Press
- March 28, 2021: Essex and Phoenix, Maryland, home, car and store. 4 killed, 1 wounded. WBAL-TV, NBC News / Associated Press
- June 7, 2022: Portsmouth, Virginia, home. 4 killed. WTKR News 3, Daily Press / The Virginian-Pilot
- Sept. 9, 2022: Elk Mills, Maryland, home. 4 killed. CBS Baltimore, WBFF Fox45 Baltimore
- Oct. 17, 2022: Dale City, Virginia, home. 4 killed. official record, Prince William Times, NBC4 Washington
- Nov. 4, 2022: La Plata, Maryland, home. 4 killed. NBC News, Charles County Sheriff's Office
- Nov. 18, 2022: Chester, Virginia, home. 4 killed. NBC News, WWBT NBC12
- Nov. 22, 2022: Chesapeake, Virginia, store. 6 killed, 4 wounded. NPR, CNBC
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