Just... by
Crazy Minh
on 2019-07-15 11:05:00 UTC
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...lure them to a airlock, shut the door on them, and vent them into space.
Or...
...deliberately decompress the entire module they're in, by sabotaging the nearest airlock and sealing all the hatches.
Or...
Drill a hole in their spacesuit, or weaken a stress point significantly. While they're in a pressurised environment, the suit won't pop. However, if they're on a spacewalk, and you've put the weak point near a joint...well, they're screwed.
Hell, you could even just club them with a sufficiently blunt object, then drag the body to a airlock, and vent them into space.
Then there's the joys of poisoning with a lethal dose of painkiller (though I doubt contemporary space agencies provide stations like the ISS with enough dosage of painkiller to deliver a lethal dose), sabotaging their EVA pack to thrust them into deep space, sabotaging the oxygen supply in their suit, or just gourging out tbeir eyes with a fork, shoving the said eyeballs in their mouth, forcing them to swallow, and then stabbing them in the gut until their die.
Murder is fun!
Easiest way to kill someone. by
Helsinki
on 2019-07-11 21:55:00 UTC
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And you only need two items for this!
1. Taser. Super quick, for the first part of knocking someone out.
2. Injecting needle. Just put air directly into their bloodstream while they're unconscious. What you do with the body afterwards, don't have many ideas for. Happy hunting.