Phoenix Police Chief Daniel Garcia announced the death of one of the city's officers on Monday afternoon.
In an emotional news conference, Chief Garcia said the victim was a 21-year veteran of the police department.
Watch the announcement in the attached video player.
A second police officer continues to fight for his life at St. Joseph's Hospital in central Phoenix.
Sources say the two officers are part of a fugitive apprehension task force and had tracked a homicide suspect to 43rd Avenue and Bethany Home Road from a nearby neighborhood.
During that apprehension, a shooting apparently broke out, and the officers were shot. The suspect was killed at the scene.