Brianne Smith poses for a photo, Tuesday, April 27, 2021, in Maryland Heights, Mo. Smith was overjoyed to get an email telling her to schedule a second dose of the COVID-19 vaccine. Hours later, her relief was replaced by dread: a phone alert — another mass public shooting. Before the pandemic, she would scan for the nearest exit in public places and routinely practiced active shooter drills at the company where she works. But after a year at home in the pandemic, those anxieties had faded. Until now. (AP Photo/Jeff Roberson)

Charles Blain, a new gun owner, poses with his holstered 9mm Glock 43 handgun, Monday, May 3, 2021, on the parking garage of his apartment complex in Houston. Blain also owns a shotgun and is currently completing his concealed carry license requirements to carry the handgun. Blain, who describes himself as a conservative, says "pandemic-related unemployment crime" and repeated calls over the past year to release hundreds of jail inmates because of soaring COVID-19 infections pushed him to buy. (AP Photo/Michael Wyke)

FILE - In this Sunday, March 15, 2020, file photo, people wait in line to enter a gun store in Culver City, Calif. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Ringo H.W. Chiu, File)

Customers stand inside the gun shop area of Maxon Shooter's Supplies and Indoor Range, as seen from the shooting range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)

Firearms trainer Kevin Burke, left, instructs new gun owner Troy Deguzman during a shooting session at Maxon Shooter's Supplies and Indoor Range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)

FILE - In this Friday, March 20, 2020, file photo, a customer looks through a rifle scope as Bob's Little Sport Shop bustles with customers, in Glassboro, N.J. Gun retailers in New Jersey can remain open as essential businesses during the coronavirus outbreak. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (Joe Lamberti/Camden Courier-Post via AP, File)

FILE - Ivan Gonzalez fills out paperwork while purchasing a gun at the Silver Spur Gun and Blade Show, Saturday, Jan. 23, 2021, in Odessa, Texas. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (Eli Hartman/Odessa American via AP, File)

FILE - In this March 28, 2020, file photo, rifles are offered for sale at Center Target Sports in Post Falls, Idaho. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (Kathy Plonka/The Spokesman-Review via AP, File)

Chicago resident Ray Mandel practices shooting during a session at Maxon Shooter's Supplies and Indoor Range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)

Guns are displayed in the showroom of Maxon Shooter's Supplies and Indoor Range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)

Charles Blain, a new gun owner, poses with his holstered 9mm Glock 43 handgun, Monday, May 3, 2021, on the parking garage of his apartment complex in Houston. Blain also owns a shotgun and is currently completing his concealed carry license requirements to carry the handgun. Blain, who describes himself as a conservative, says "pandemic-related unemployment crime" and repeated calls over the past year to release hundreds of jail inmates because of soaring COVID-19 infections pushed him to buy. (AP Photo/Michael Wyke)

FILE - In this Wednesday, March 25, 2020, file photo, signs point out quantity limits on certain types of ammunition after Dukes Sport Shop reopened, in New Castle, Pa. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Keith Srakocic, File)

Chicago resident Ray Mandel, center, shows his target to others during a shooting session at Maxon Shooter's Supplies and Indoor Range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)

Diane Rowe, owner of Papas Pawn & Gun, disinfects the counter after a costumer came to look at a gun in Grants, N.M., Monday, April 27, 2020. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (Luis Sánchez Saturno/Santa Fe New Mexican via AP, File)

Bullet casings lie on the floor at the shooting range of Maxon Shooter's Supplies and Indoor Range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)

Maxon Shooter's Supplies and Indoor Range owner Dan Eldridge is reflected on a glass door as he watches the shooters at the pistol range, Friday, April 30, 2021, in Des Plaines, Ill. After a year of pandemic lockdowns, mass shootings are back, but the guns never went away. As the U.S. inches toward a post-pandemic future, guns are arguably more present in the American psyche and more deeply embedded in American discourse than ever before. The past year's anxiety and loss fueled a rise in gun ownership across political and socio-economic lines. (AP Photo/Shafkat Anowar)