SEATTLE (AP) -- Police investigating the killing of a Seattle police officer say video from a police car camera shows a car similar to the light-colored subcompact from which the fatal shots were fired.
Spokesman Sean Whitcomb says the video was recorded around the time and vicinity of the Halloween shooting.
Whitcomb called it a vehicle of interest Wednesday, and said police are continuing to investigate a number of other leads and still asking for tips.
The Seattle Police Officers Guild says the reward for information to help catch the killer of Officer Timothy Brenton has grown to $85,000.
Police say they have no new information on a suspect or motive in Brenton's shooting death as he sat in a parked patrol car on Halloween night.
Brenton was a training officer reviewing a traffic stop with rookie Officer Britt Sweeney when a car pulled alongside. Brenton was shot in the head and died at the scene. Sweeney was grazed in the neck but was able to return fire as a small, light-colored car sped away.
Brenton's memorial service is set for 1 p.m. Friday at Seattle's Key Arena. A fund has been set up for his family. Donations may be made at any Bank of America to the "Brenton Family Assistance Fund."
After the shooting, the suspect car backed away in an apparent attempt to avoid the police car's camera. Whitcomb says that's a sign the shooting was planned. It's also possible the suspects were quick thinking enough to know the in-dash camera could record their license plate when making their getaway.
Investigators believe Britt hit the fleeing car when she returned fire.