7 Mass Shootings in US history that Devastated the Nation
Mass shootings have repeatedly reshaped public life in the United States, from schools and churches to concerts and nightclubs. This list looks at seven of the deadliest attacks in modern US history, using confirmed casualty counts from law enforcement, court records, and federal investigations. Each case left a lasting mark on the community where it happened and on the national conversation that followed.
1. Las Vegas Strip shooting, Nevada
On October 1, 2017, a gunman fired from the 32nd floor of Mandalay Bay into the Route 91 Harvest festival crowd on the Las Vegas Strip. Clark County officials said 58 people were killed that night, and later reports tied two additional deaths to injuries from the attack, bringing the toll to 60. More than 850 people were reported injured, according to public records reviewed by local authorities.
The shooting hit one of the country’s busiest tourism corridors in Nevada. Las Vegas police confirmed the attack happened across from Mandalay Bay near the outdoor concert venue, but a complete long-term accounting of every affected visitor by home state was never publicly released. The FBI closed its review in 2019 and said it found no clear motive.
2. Pulse nightclub shooting, Florida
On June 12, 2016, a gunman opened fire inside Pulse, a gay nightclub in Orlando, Florida. The FBI and the City of Orlando said 49 victims were killed and 53 others were wounded in the attack. At the time, it was the deadliest mass shooting in modern US history.
The attack devastated central Florida and especially Orlando’s LGBTQ community. City records confirmed Pulse became both an active crime scene and a memorial site, while federal court proceedings later documented the response timeline in detail. Investigators said the shooter had pledged allegiance to the Islamic State during the attack, according to the FBI.
3. Virginia Tech shooting, Virginia
On April 16, 2007, a student killed 32 people on the Virginia Tech campus in Blacksburg before taking his own life. Virginia Tech and state investigators said 17 others were wounded by gunfire, with more injured while escaping classrooms and buildings. The attack remains the deadliest school shooting in US history.
The violence unfolded in two locations on campus, including Norris Hall, according to the Virginia Tech Review Panel. State findings later showed gaps in mental health reporting and emergency communication before the attack. Those failures became a major focus in Virginia and nationwide as colleges reviewed campus alert systems.
4. Sandy Hook Elementary School shooting, Connecticut
On December 14, 2012, a gunman killed 20 children and six educators at Sandy Hook Elementary School in Newtown, Connecticut. Connecticut State Police said the shooter had first killed his mother at a nearby home, bringing the total number of victims to 27, including the attacker. The school victims were all either six or seven years old, according to the official state report.
The attack brought intense attention to school safety in Connecticut and across the US. Investigators later documented how the shooting unfolded in a matter of minutes after entry into the building. The case also led to years of legal and political fallout, including high-profile defamation cases tied to false conspiracy claims.
5. Sutherland Springs church shooting, Texas
On November 5, 2017, a gunman opened fire during a service at First Baptist Church in Sutherland Springs, Texas. The Texas Department of Public Safety said 26 people were killed and 22 were injured. Victims ranged in age from 18 months to 77 years old, according to state officials.
The attack struck a small community about 30 miles southeast of San Antonio. Federal reviews later found the US Air Force had failed to submit the gunman’s criminal history to the FBI database, which should have blocked the firearm purchase. That finding became central to later court cases and military record reforms.
6. Robb Elementary School shooting, Texas
On May 24, 2022, a gunman killed 19 students and two teachers at Robb Elementary School in Uvalde, Texas. The Texas House investigative committee and local officials confirmed 17 other people were injured. The victims were in two adjoining fourth-grade classrooms, according to the official legislative report.
The local impact in Uvalde was immediate and long-lasting. State investigators and the US Department of Justice later detailed major failures in law enforcement response, including a delay of more than 70 minutes before officers confronted the shooter. Those findings drove leadership changes and new scrutiny of active shooter training in Texas.
7. Parkland school shooting, Florida
On February 14, 2018, a former student killed 17 people at Marjory Stoneman Douglas High School in Parkland, Florida. The Broward County Sheriff’s Office and court records said 17 others were also wounded. The shooting took place in the school’s freshman building shortly before dismissal.
The aftermath quickly reached beyond Broward County. Student survivors helped organize March for Our Lives in 2018, drawing hundreds of thousands of participants to Washington, according to event organizers and news coverage from the time. In 2022, a Florida jury recommended life in prison without parole, and the judge formally imposed that sentence.
