Completely random stoned hypothetical. Lets day im old as fuck and I decide I’m ready and done. Could I have the same postmortem autopsy done on me while I’m still alive? Like give me a ton of drugs and let me watch myself get dissected as my final moments. I understand there is a legal and possibly moral concern, but is it really ethically that bad if I also want it? Like I’m not taking myself out at my prime, I’m nearly dead anyways. Lemme see myself cut apart that’d be cool as shit, only if I couldn’t feel any pain though.
In general you cannot consent in being assassinated, and even in place where euthanasia/assisted suicide is legal, there is still a strict process to make-it cleanly rather than cutting down a person in piece
Mind you this boils down to an absurdly short list of countries who even allow euthanasia at all.
And that’s because making sure the victim consented is super scary and risky. You don’t wanna accidentally allow murder, even if it’s only for the very smart murderers who can forge documents.