Ten people, including a police officer, were killed in Boulder, Colorado, on Monday afternoon when a gunman opened fire at a King Soopers grocery store, where residents had gathered to shop and receive COVID-19 vaccines.
The victims range in age from 20 to 65, Boulder Police Chief Maris Herold said.
The slain officer, 51-year-old Eric Talley, was the first member of law enforcement to arrive at the scene, Herold said. He was shot in the head, according to the arrest warrant affidavit.