SEATTLE -- Slain Seattle police Officer Timothy Brenton was remembered as a father, brother, husband, friend, teacher and hero at a public memorial service at KeyArena.

Thousands of officers from around the Northwest attended Friday's ceremony, which followed a procession of hundreds of cars with lights flashing through the city.

It took nearly two hours to complete the procession route from the University of Washington to Seattle Center. At one point, the procession traveled under an American flag hanging from an arch made from fire trucks' extended ladders.

Officials in attendance included Gov. Chris Gregoire, Sen. Patty Murray, Seattle Mayor Greg Nickels and former police Chief Gil Kerlikowske.

Honor guards with bagpipes, drums and flags took part in the ceremony.

Meanwhile, police continue to look for the killer who shot Brenton on Halloween night as he sat in a parked patrol car reviewing a traffic stop with rookie Officer Britt Sweeney who was wounded. Police are looking for the car from which the shots were fired. It's believed to be a white or beige 1980 to 1983 Datsun 210.