More than 20,000 law enforcement officials convened in Tacoma Tuesday for a memorial at the Tacoma Dome to honor four Lakewood police officers killed Nov. 29 in a Parkland coffee shop.

The memorial — which was preceded by a 10-mile procession of police, fire, and other emergency service vehicles, stretched from McChord Air Force Base, past the Lakewood Police Department, and concluded in Tacoma — honored Sgt. Mark Renninger, 39, and officers Ronald Owen, 37, Tina Griswold, 40, and Greg Richards, 42. The slain officers were all part of Lakewood’s initial police department start-up five years ago. All transferred to Lakewood as commissioned law enforcement officers from other jurisdictions.

“Today’s ceremony is about honoring those lives and about honoring those sacrifices,” Lakewood Mayor Doug Richardson said during the memorial. “To an officer, they would tell you, ‘ On Nov. 29, I was doing my duty.’ There is no higher calling than to do one’s duty, and they served well.”

The memorial also included comments from Lakewood Police Chief Bret Farrar, Gov. Chris Gregoire, and friends and family members of the fallen officers.

According to law enforcement officials, Maurice Clemmons, 37, entered Forza’s Coffee shop and shot the officers. A two-day manhunt ensure before Clemmons was shot and killed after a confrontation with a police officer in South Seattle. The Pierce County Prosecutor’s Office has charged seven people for allegedly assisting Clemmons during the manhunt.

Those interested in supporting the families of the slain officers are welcome to make a donation through the Lakewood Police Independent Guild (LPIG) Benevolent Fund at PO Box 99579, Lakewood, WA 98499. Visit http://www.lpig.us for more information .