Law enforcement and first responders gather outside Robb Elementary School following Tuesday's shooting in Uvalde, Texas. Their response has since come under wide scrutiny.
Elena Mendoza, 18, on Thursday grieves in front of a cross honoring her cousin, Amerie Jo Garza, one of the victims killed in this week's elementary school shooting in Uvalde, Texas.
Jae C. Hong/AP
In this April 20, 1999, file photo, women head to a library near Columbine High School where students and faculty members were evacuated after two gunmen went on a shooting rampage in the school in the Denver suburb of Littleton, Colo.
A sign reads "Danger Extreme Heat Conditions Ahead" in Anza-Borrego Desert State Park, which is threatened by climate change, on March 23 near Borrego Springs, Calif.
Mario Tama/Getty Images
Pastor Andre Kamoche, left, and Greg Jackson, with Rehoboth House of Prayer, help unload a truck of fresh produce to be given out to people affected by the Tops closure on Tuesday in Buffalo, N.Y.
Alexandra Hunt listens to the concerns of Philadelphians during a rally in support of Philly students at the Cherry Street Pier in Pennsylvania on July 16, 2021.
Cory Clark/NurPhoto via Reuters
A sign telling consumers of limits on the purchase of baby formula hangs on the edge of an empty shelf for the product in a King Soopers grocery store, Wednesday, in Denver.