Memorial for Nearly 20,000 Washington , Tacoma , police officers held in Tacoma . Nearly 20,000 people -- many of them police officers -- attend , Lakewood reports . Before the service Tuesday , a procession of thousands of police vehicles went from McChord Air Force Base to the Tacoma Dome , taking several hours to complete , KIRO reported . Slain officers would say , `` I was doing my duty , '' mayor says . Officers fatally shot in coffee shop on two days later .
Memorial for Nearly 20,000 Washington , Tacoma , police officers held in Tacoma . Nearly 20,000 people -- many of them police officers -- attend , Lakewood reports . Slain officers would say , `` I was doing my duty , '' mayor says . Officers fatally shot in coffee shop on two days later .