Healthcare workers walk out of a King Sooper's Grocery store after a gunman opened fire on March 22, 2021 in Boulder, Colorado. Dozens of police...
People gather at a makeshift memorial honoring victims outside Walmart August 15, 2019 in El Paso, Texas. 22 people were killed in the Walmart during...
People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people...
Law enforcement officials investigate the scene where a gunman opened fire on a crowd of people over night on Fifth Avenue in the Oregon District on...
Law enforcement officers speak together outside of Robb Elementary School following the mass shooting at Robb Elementary School on May 24, 2022 in...
An injured person is tended to in the intersection of Tropicana Ave. And Las Vegas Boulevard after a mass shooting at a country music festival nearby...
People hold candles during an evening memorial service for the victims of the Pulse Nightclub shootings, at the Dr. Phillips Center for the...
Mourners stand during a candlelight vigil for the victims of Marjory Stoneman Douglas High School shooting in Parkland, Florida on February 15, 2018....
Mourners attend a candlelight vigil at the corner of Sahara Avenue and Las Vegas Boulevard for the victims of Sunday night's mass shooting, October...
Man lays on top of a woman as others flee the Route 91 Harvest country music festival grounds after a active shooter was reported on October 1, 2017...
People mourn outside of the SSGT Willie de Leon Civic Center following the mass shooting at Robb Elementary School on May 24, 2022 in Uvalde, Texas....
Buffalo Police on scene at a Tops Friendly Market on May 14, 2022 in Buffalo, New York. According to reports, at least 10 people were killed after a...
Sacramento Police crime scene investigators place evidence markers on 10th street at the scene of a mass shooting in Sacramento, Calif., on Sunday,...
Man places flowers in the fence at a makeshift memorial for the victims of a mass shooting outside a King Soopers grocery store on March 24, 2021 in...
Tactical police units respond to the scene of a King Soopers grocery store after a shooting on March 22, 2021 in Boulder, Colorado. Dozens of police...
People run from the Route 91 Harvest country music festival after apparent gun fire was hear on October 1, 2017 in Las Vegas, Nevada. A gunman has...
American flags are flown at half-staff in response to the San Jose mass shooting, at the base of the Washington Monument on the National Mall on May...
Bullet holes are seen in the window of Tops Friendly Market at Jefferson Avenue and Riley Street, as federal investigators work the scene of a mass...
Law enforcement officials are seen at the scene of a mass shooting at Tops Friendly Market at Jefferson Avenue and Riley Street on Sunday, May 15,...
Group of women console each other at the scene of a mass shooting in Sacramento, Calif., on Sunday, April 3, 2022. The family was grieving for a...
Officials recover a body at the site of a mass shooting at a FedEx facility in Indianapolis, Indiana, on April 16, 2021. - A gunman has killed at...
People gather for a candlelight vigil on March 23 to honor the ten victims of a mass shooting that occurred a day earlier at a King Soopers grocery...
Shoppers are evacuated from a King Soopers grocery store after a gunman opened fire on March 22, 2021 in Boulder, Colorado. Dozens of police...
Mourners hold their candles in the air during a moment of silence during a vigil to mark one week since the mass shooting at the Route 91 Harvest...
People scramble for shelter at the Route 91 Harvest country music festival after apparent gun fire was heard on October 1, 2017 in Las Vegas, Nevada....
Mourners hold candles while observing a moment of silence during a vigil outside the Dr. Phillips Center for the Performing Arts for the mass...
An officer walks outside of Robb Elementary School in Uvalde, Texas, on May 24, 2022. - An 18-year-old gunman killed 14 children and a teacher at an...
People gather outside the police tape at Tops Friendly Market at Jefferson Avenue and Riley Street on Sunday, May 15, 2022 in Buffalo, NY. The fatal...
People hold a small prayer service next to crosses with the names of the victims of the Columbine High School shooting near the Columbine Memorial on...
Groups of mourners cry while gathering for a prayer vigil at Olivet Missionary Baptist Church April 17, 2021 in Indianapolis, Indiana. The vigil was...
Mourners attend a vigil to commemorate the victims of a mass shooting at a King Soopers grocery store on Thursday, March 25, 2021 in Boulder,...
People support each other as they pay tribute on March 23 to the 10 victims of a shooting at a King Soopers grocery store in Boulder, Colorado. -...
Abel Valenzuela, local of El Paso, meditates in front of the makeshift memorial for shooting victims at the Cielo Vista Mall Walmart in El Paso,...
An airplane passenger waiting to board a flight at Heathrow International Airport in London, England, reads copies of two English tabloid newspapers,...
Some of the 58 white crosses for the victims of Sunday night's mass shooting, on Las Vegas Strip just south of the Mandalay Bay hotel, October 6,...
Las Vegas resident Nancy Hardy visits the 58 white crosses for the victims of Sunday night's mass shooting, on Las Vegas Strip just south of the...
People lie on the ground at the Route 91 Harvest country music festival after apparent gun fire was hear on October 1, 2017 in Las Vegas, Nevada....
Agents investigate near the damaged rear wall of the Pulse Nightclub where Omar Mateen allegedly killed at least 50 people on June 12, 2016 in...
People hold candles as they attend a vigil at the San Manuel Stadium to remember those injured and killed during the shooting at the Inland Regional...
Family grieves outside of the SSGT Willie de Leon Civic Center following the mass shooting at Robb Elementary School on May 24, 2022 in Uvalde,...
Law enforcement officers speak together outside of the SSGT Willie de Leon Civic Center following the mass shooting at Robb Elementary School on May...
People gather at a memorial for the shooting victims outside of Tops market on May 20, 2022 in Buffalo, New York. 18-year-old Payton Gendron is...
Family members of 86-year-old Ruth Whitfield who was killed during a mass shooting at Tops market listen as attorney Benjamin Crump speaks during a...
Attorney Benjamin Crump comforts the family of 86-year-old Ruth Whitfield who was killed during a mass shooting at Tops market on May 16, 2022 in...
Carlee Taggart of Chicago and Robyn Harpell, of Virginia Beach light candles at a makeshift memorial near the scene of a mass shooting at Tops...
Majority Leader of the New York State Assembly, Crystal Peoples-Stokes, center left, shares a moment with Marnetta Malcom as they visit a makeshift...
People enjoy the Spring evening as the sunsets over the National Mall, where flags are flying at half-staff at the base of the Washington Monument to...
Family members of Karli Smith, who was killed in a mass shooting, attend a vigil in Indianapolis, Indiana on April 18, 2021 to remember the victims...
Mourners attend a vigil to commemorate the victims of a mass shooting at a King Soopers grocery store on Thursday, March 25, 2021 in Boulder,...
Father and daughter comfort each other at a makeshift memorial for the victims of a mass shooting outside a King Soopers grocery store on March 24,...
People light candles during a prayer and candle vigil organized by the city, after the shooting that left 20 people dead at the Cielo Vista Mall...
Copies of the English tabloid newspapers The Times and The Sun are left on a seat in the terminal at Heathrow International Airport in London,...
Howard Unruh went berserk and entered shops and homes shooting everyone he encountered. He killed 13, men, women, and children. He barricaded himself...
Makeshift memorial sits at Santa Fe High School to recover their belongings, a day after a mass shooting, May 19, 2018 in Santa Fe, Texas. - Ten...
Sign hangs on a fence one at Marjory Stoneman Douglas High School in Parkland, Florida on February 27, 2018. Florida's Marjory Stoneman Douglas high...
Shari Unger, Melissa Goldsmith and Giulianna Cerbono hug each other as they visit a makeshift memorial setup in front of Marjory Stoneman Douglas...
People are brought out of the Marjory Stoneman Douglas High School after a shooting at the school that reportedly killed and injured multiple people...
Twenty-six crosses stand in a field on the edge of town to honor the 26 victims killed at the First Baptist Church of Sutherland Springs on November...
Person lies on the ground covered with blood at the Route 91 Harvest country music festival after apparent gun fire was heard on October 1, 2017 in...
Investigators remove a body as they work a crime scene outside the Curtis Culwell Center after a shooting occurred the day before May 04, 2015 in...