A vendor, right, who found a bullet casing, gives it to a police officer after a shooting at Seattle Center during the Bite of Seattle food festival, Monday, July 27, 2026, in Seattle. (AP Photo/Lindsey Wasson)

People hold smartphone with flash light during the vigil for victims the day after a shooting at Seattle Center during the Bite of Seattle food festival, Monday, July 27, 2026, in Seattle. (AP Photo/Lindsey Wasson)

Michelle Whitehead, right, and her sister Judy Whitehead, left, both cousin of victim Ashley Whitehead, during the vigil for victims the day after a shooting at Seattle Center during the Bite of Seattle food festival, Monday, July 27, 2026, in Seattle. (AP Photo/Lindsey Wasson)

FILE - A sign welcomes people to the Howard University campus in Washington on July 6, 2021. (AP Photo/Jacquelyn Martin, File)

Ashley Gilland, an investigator with the Barrow County District Attorney's office, looks over the assault rifle used in the Apalachee High School shooting by suspect Colt Gray during Gray's sentencing at Barrow County Superior Court, Monday, July 27, 2026, in Winder, Ga. (Jason Getz/Atlanta Journal-Constitution via AP)

Judge Nicholas Primm reacts during the sentencing for Colt Gray, right, the 16-year-old Apalachee High School shooting suspect, at Barrow County Superior Court, Monday, July 27, 2026, in Winder, Ga. (Jason Getz/Atlanta Journal-Constitution via AP)

Colt Gray, the 16-year-old Apalachee High School shooting suspect, reacts during his sentencing at Barrow County Superior Court, Monday, July 27, 2026, in Winder, Ga. (Jason Getz/Atlanta Journal-Constitution via AP)

District of Columbia Mayor Muriel Bowser, right, speaks as Delano Hunter, director of the DC Department of General Services, left, listens during the opening of the newly renovated outdoor pool at the Rosedale Recreation Center, Thursday, July 23, 2026, in Washington. (AP Photo/Mariam Zuhaib)