It means *wrongful* killing
But people don't want to die. It's wrong to die for vast majority of people
And now you've switched from "pure logic" to your opinion. My opinion is that no living thing has the right to live at the expense of the bodily integrity of a conscious being.
Say a stranger needs your kidney and your house (to sell to pay for the kidney transplant) to live. They will die without them, and you can live with one kidney and no house. If you don't give them your kidney and your house, have you wrongfully killed them?