UPDATE 9:35am: Moscow Police announced that one of the law officers wounded in an ambush shooting late Saturday night has died. Sgt. Lee Newbill was pronounced DOA at the hospital after being shot outside of the Latah County Courthouse.
Sgt. Newbill is the first officer to ever die in the line of duty at the Moscow Police Department. He was a 7 year veteran.
Brannon Jordan, a sheriff's deputy with Latah County Sheriff's Office, is in serious condition at the hospital. He was also wounded in the ambush. A civilian who was hit is in surgery but stable condition.
------------------------------
Slideshow at KERM
No ID yet on the killer From looks of this, it *may* have been a full auto weapon.

And from this,
I'd say it was .30 cal. With an AK type being most likely, but of course there are lots of possibilites, including an M-2 Carbine.