Why did this character in Prometheus kill without apparent reason?
At the end of Prometheus, why did the Engineer kill the humans? What is that thing that killed the Engineer?
Best Answer
The Alien you are saying is actually an "Engineer" and they developed the so called "parasite plague" to end the planet earth (which they created in the first place).
If you remember the alien or parasite plague agent that killed "engineer" was forcefully taken out by Elizabeth (Eli) from her stomach in the med pod. She actually froze it using decontamination gas of the med pod but it survived and tried to come out of that room at the end and the "engineer" was accidentally present there at the same time. The alien killed the engineer and supposedly impregnated him and that's why you see a new alien born at the end of the movie.
Check this post which gives an insight into the whole plot.
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Who is the white guy in Prometheus?
Ian Whyte (actor)Ian WhyteBorn17 September 1971 Bangor, Gwynedd, WalesOccupationActorYears active2004\u2013presentHeight7 ft 1 in (2.16 m)1 more rowWhy was the engineer angry in Prometheus?
The Engineer seemed intrigued by this and became upset when Shaw got hurt and interrupted. When David asked for immortal life he must of thought the human race was greedy and unappreciative. This must have upset him. Just think if you created life and it wasn't what you expected it to be.What is the creature at the end of Prometheus?
Prometheus - What is the Deacon? The Deacon is a horrifying Xenomorph-like creature featured in the film Prometheus.What happened to the Engineers in Prometheus?
Whatever the cause (presumably revealed in a possible Prometheus sequel), an accident occurred in the facility and the Engineers were wiped out. The dead Engineers found by Millburn and Fifield show signs that they "gave birth" to alien creatures.Ridley Scott Tells the REAL REASON Why Engineers Want to Kill Humans and Destroy Earth
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Answer 2
So I have been doing a lot of thinking and I realized that Elizabeth wanted to kill the alien inside of her as soon as she found out about it. Maybe the engineers made us by mistake just as Elizabeth and Holloway did. Maybe they thought they would create something else!
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