This is the megathread on “N from D”.
You will find details in the posts above on how to find his email to contact him.
A good place to start is to read the peaceful pill e-handbook, linked here:
Thread 'PPH April 2022'
https://sanctioned-suicide.org/threads/pph-april-2022.89185/
Don’t download the PPeH from other sources, they may contain malware or fake contact details to lure you into a scam.
However this link above posted by one of the mods is reliable.
It will take some time and legwork to find what you are looking for, but it’s setup this way to protect everyone involved. The source, the forum and users of the forum too.
Good luck.