Even if AI doesn't ever go "evil" itself, that doesn't mean people that don't like other people won't use it to more effectively kill those people. All that's really needed is a capable programmer willing to give the LLM the tools it needs, along with funds and access. The LLM could hire humans to do the work it's lacking at. These things are already capable of all that, plus our world went mostly digital during the pandemic... they have easy egress because humans have made it so, even though that was meant for other humans to use. If you don't think they are scary, in the wrong hands, then you are lacking in imagination.