chunk: When Copper attempts to revive him, Norris transforms and kills Copper. MacReady incinerates the creature and orders Windows to tie up everyone for a new test. Clark attacks MacReady, and MacReady shoots him in the head, killing him. MacReady explains his theory that every piece of the alien is an individual organism with its own survival instinct. One by one, MacReady tests everyone's blood with a heated piece of copper wire, including Copper and Clark's bodies. Everyone is still human except Palmer, whose blood flees from the hot wire. Exposed, Palmer metamorphoses and attacks Windows, forcing MacReady to burn them both.