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 .
Memorial for four Lakewood , Washington , police officers held in Tacoma . Nearly 20,000 people -- many of them police officers -- attend , KIRO reports . Slain officers would say , `` I was doing my duty , '' mayor says . Officers fatally shot in coffee shop on November 29 .