<unk> <unk> <unk> <unk> <unk>  Passage: A monstrous, mutated Fifield returns to the Prometheus and kills several crew members before he is killed. Prometheus' captain, Janek, speculates that the structure was an Engineer military base that lost control of a virulent biological weapon, the dark liquid. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Weyland and a team return to the structure, accompanied by Shaw.<unk> Weyland and a team return to the structure, accompanied by Shaw. David wakes the Engineer from stasis and talks to him in an attempt to explain what Weyland wants.<unk> David wakes the Engineer from stasis and talks to him in an attempt to explain what Weyland wants.<unk> David wakes the Engineer from stasis and talks to him in an attempt to explain what Weyland wants. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Shaw flees and warns Janek that the Engineer is planning to release the liquid on Earth, convincing him to stop the spacecraft.<unk> Shaw flees and warns Janek that the Engineer is planning to release the liquid on Earth, convincing him to stop the spacecraft. Janek and the remaining crew sacrifice themselves by ramming the Prometheus into the alien craft, ejecting the lifeboat in the process, while Vickers flees in a escape pod. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> David's still-active head warns Shaw that the Engineer is pursuing her. David's still-active head warns Shaw that the Engineer is pursuing her. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Shaw recovers David's remains, and with his help, launches another Engineer spacecraft.<unk> Shaw recovers David's remains, and with his help, launches another Engineer spacecraft. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️  Question: What killed Vickers?
️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️