The biohazard placard is there because some items still have blood on them.
The shotgun is a look-alike placed there by police. The actual shotgun is undergoing forensic examination. The rifle, bandoliers, and ammunition are those found in the truck.
{{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|License: Released by the en:Seattle Police Department to the press, re: [[:en:Capitol Hill massac