May 15 is National Peace Officers Memorial Day, and agencies across Colorado are honoring police, troopers and other law enforcement officers who were killed in the line of duty.

This year, 345 names of fallen officers were added to the National Law Enforcement Officers Memorial. A service remembers their sacrifice, and the sacrifice of the over

Law enforcement officers killed in the line of duty were honored Thursday as part of Peace Officers Memorial Day, which included a ceremony in Washington, D.C.