Oregon Public Broadcasting

Tuesday is a day of morning in Washington. 20,000 people are expected to gather at the Tacoma Dome to remember four murdered officers from the Lakewood Police Department.

It's considered the largest memorial ever in the Evergreen State.

U.S. Senator Patty Murray remembered the fallen officers Monday in a speech on the Senate floor.

Patty Murray:  "Mr. President this was a senseless and brutal killing and it specifically targeted the people who sacrifice each day to keep all of us safe. This terrible crime has not only left the families of the victims shattered but it has shattered our sense of safety and has left an entire community in disbelief."

Gov. Chris Gregoire will speak at the memorial.

The services will remember Sergent Mark Renninger, and officers Ronald Owens, Tina Griswold and Greg Richards.