On the night of February 20, 2016, a spree shooting took place at an apartment complex, a Kia car dealership, and outside a Cracker Barrel restaurant in Kalamazoo County, Michigan. Six people were killed, and two others were injured.
On September 20, 2018, four people were shot and killed outside a Rite Aid distribution center in Aberdeen, Maryland, United States. The shooting occurred 30 miles (48 km) northeast of Baltimore. This was the eighth mass shooting in Maryland in 2018, according to the Gun Violence Archive.
The George Floyd protests in Chicago were a series of civil disturbances in 2020 in the city of Chicago, Illinois. Unrest in the city began as a response to the murder of George Floyd in police custody in Minneapolis on May 25, 2020. The demonstrations and riots, supporting justice for Floyd and protesting police brutality, occurred simultaneously with those of over 100 other cities in the United States. Chicago is among 12 major cities that declared curfews in order to prevent looting and vandalism. On May 31, Mayor Lori Lightfoot asked Illinois Governor J.B. Pritzker to send the Illinois National Guard to Chicago for the first time in the 52 years since the 1968 riots in Chicago. The economic damage caused by the disturbances exceeded $66 million.
On August 29, 2020, Aaron Danielson, an American supporter of the far-right group Patriot Prayer, was shot and killed after participating in a caravan which drove through Portland, Oregon, displaying banners and signs supporting President Donald Trump, and clashing with participants in the local George Floyd protests.
A mass shooting took place on September 19, 2020, in Rochester, New York, United States, at a late-night backyard party on Pennsylvania Avenue. Two people were killed and fourteen others were injured. No arrests have been made. It is considered the largest mass shooting in Rochester in recent memory.
On November 20, 2020, a shooting occurred at Mayfair Mall in Wauwatosa, Wisconsin, United States. Eight people were injured but survived. The shooter fled the scene afterwards and was later arrested during a traffic stop. Police said the shooting was not a random act and had been sparked by an earlier altercation between two groups. Two days later, several people were arrested in connection with the shooting, including a 15-year-old boy.
On February 9, 2021, a mass shooting and bombing occurred at a medical clinic in Buffalo, Minnesota, United States. Just before 11:00 a.m. CST, Gregory Paul Ulrich, a 67-year-old man, shot five people at Allina Health's Buffalo Crossroads facility. One victim, Lindsay Overbay, died, and three others were critically injured from gunshot wounds. All of the victims were medical clinic staff. During the attack, Ulrich discharged three improvised explosive devices, one of which failed to detonate. He surrendered to police who were dispatched to the clinic, and he was taken into custody. He admitted to authorities that he fired on people inside the clinic and set off bombs.
On February 19, 2022, Benjamin Jeffrey Smith approached and assaulted a small group of women, at the edge of Normandale Park in Portland, Oregon, United States. He murdered one, caused the paralysis of another from the shoulders down, and seriously injured three others, including a bystander who had approached to deescalate.
On April 3, 2022, at approximately 2:00 a.m., a mass shooting occurred in downtown Sacramento, California, United States. Six people were killed and twelve others were injured. The Sacramento Bee described it as the "worst mass shooting in Sacramento's history". Five shooters are suspected to be involved in the incident.
On the morning of April 12, 2022, a mass shooting was committed on a northbound N train on the New York City Subway in Sunset Park, Brooklyn, New York, United States. At approximately 8:24 a.m. EDT, a 62-year-old Black nationalist Frank Robert James put on a gas mask, threw two smoke grenades, and fired a handgun 33 times. The shooting occurred as the train was traveling between the 59th Street and 36th Street stations.
On July 17, 2022, a mass shooting occurred at the Greenwood Park Mall in Greenwood, Indiana, United States. The shooting occurred at 5:56 p.m. EDT (UTC−04:00) and lasted less than one minute. Three people were killed and two others were injured in the shooting before the perpetrator, 20-year-old Jonathan Sapirman, was fatally shot by 22-year-old Elisjsha Dicken, a legally-armed civilian bystander.
On October 13, 2022, a mass shooting occurred in the Hedingham neighborhood of Raleigh, North Carolina, United States. Five people were killed, and two others were injured. The accused, a male juvenile named Austin Thompson, was detained after being cornered by police at a nearby residence and was in critical condition from a gunshot wound to the head sustained during the incident. Thompson survived his head injury and has begun to receive physical rehabilitation. He was transferred from a hospital to the medical unit of a juvenile correctional facility.
On April 15, 2023, a mass shooting occurred in Dadeville, Alabama, United States. The victims were mostly teenagers, with four fatalities and thirty-two injuries. The shooting took place at a 16th birthday celebration at the former Dadeville Bank, at 220 N. Broadnax St, which had been converted into the Mahogany Masterpiece Dance Studio in 2021.
