The Seattle police will file charges of murder, assault with a deadly weapon, and attempted murder.One reason they may be waiting is to see if any of the wounded women die, and then there will be more murder charges on the booking and that wil save them a lot of paper work. Also the feds need all the supporting info. they can get from relatives to support a federal hate crime charge. It may be that he will be tried federally first, but whatever the case, this POS is in jeapardy of a death sentence on both state and federal counts, with the feds likely getting the execution duty as having superior jurisdiction. In days to come we will see who gets to try him first. He could not be executed until the federal trial is over in any case.
He will likely enter an insanity plea.
But he seemed rational, laying down his weapon and going outside to surrender.