I don't understand people threatening others with death. If you could get away with their murder, now you totally can't.
Furthermore, imagine the person suddenly dying from an accident. Or being murdered by someone else. Who is the top suspect now?
A far more effective strategy is just getting their phone number and then calling them from prepaid sim cards and reading them random numbers. There is a video about it:
https://www.youtube.com/watch?v=vuKnR8RvxHYFor legal reasons, this post is a shitpost, you probably shouldn't follow any actions described in the post, excluding clicking the video link. I am not a lawyer, in case you wanted to psychologically torture somebody, you should consult legal consequences with your lawyer.
Edited 4/2/2022 15:17:34