When I was a teenager I was trying to impress some girls so I showed them the head of this goat I had shot hunting, it had an impressive rack. I was storing it in the fridge wrapped up in a trash bag because I wanted to show it to my dad who was away on a trip.
Anyway they were kind of impressed cause they never saw that kind of thing before being sheltered city girls. Then I had the inspiration to take the goat head and sneak into the public pool and leave it in the life guard tower, the girls were super excited like it was the funnest thing they ever did. It was a great night. Don't know what ever happened with the lifeguard that found it.
The whole thing didn't have anything to do with satanism or ill will, just a teenager trying to impress some girls and it worked.
Holy crap! I'd never seen that before! For its time, that's masterful! It also makes the sci-fi facet of the screenplay much more intelligent. (Of course the Colonial Marines are going to use lots of automated weapons!)