The person was Stanley Meyer. The following is from my memory of the article in Nexus that went into much detail. There is no doubt in my mind at least that his invention was viable and it worked. He drove across the US in his hydrogen powered car. All his invites to the MSN to come and have a look or to interview him fell on deaf ears. All potential investors he spoke to all said the same to him, that investing in his invention was a death wish and that the big oil and fuel producers would never allow it to see the light of day. He was also offered large sums of money to sell the patents which he refused to do and as you correctly say, his last words were 'they've poisoned me'. The identity of the two potential investors he was speaking to at the time remains unknown. The autopsy gave the reason for death as a stroke but according to his daughter, who was present at the time, I think, the symptoms she said he showed were not those of a person having a fatal stroke. I may be wrong on that.
As for showing links, etc. When I can, I do. I get a lot of info from the alternative social media channels like Rumble, Bitshute, etc. Also the dark web which is not full of dodgy stuff that a person may come across by accident. The dodgy stuff is usually accessed by invitation only not that I've ever searched for it or have inclination to either. A lot of journalists, university students, etc, etc, use it for research because it is beyond the domain of the highly censored Google, etc. All that is needed is a Tor browser and a VPN from any country except a 5 eyes country, a 5+ eyes country, and a 9 or 14 eyes one. The reason being privacy. I know of someone who did a lot of research on red mercury who ended up in prison albeit for a very short time for something that apparently doesn't exist. He was found guilty of a completely different contrived charge.
https://en.wikipedia.org/wiki/Five_Eyes#Other_international_cooperatives
When asking for links to stuff I post I get a little puzzled. The whole world of the Fortean, the paranormal and the unexplained and so on is virtually all unprovable. It relies often on what a person says happened or what they obsevered which is not proof per say. Video evidence can be faked and often is. Even quoting books by such esteemed authors as Jenny Randall or Dr Paul Lee is still not actual proof. (No insult intended. I have read and thoroughly enjoyed books by both and others.) I sometimes come across something within, say, a video or an article, and decide to look more into it and off I go. Sometimes it leads to somewhere and sometimes it leads to nowhere. A link is not proof. That's why I say to do your own research and make up your own mind.
I've been labeled many time as a conspiracy theorist and I have always said to do your own research yet those who I say that to don't do that. What is so complex or conspirital about that comment? I am not saying what I say is true, so do your own research and decide for your self. They then seem to always go with the flow of what the media tells them. I just don't get it and I now give up. Maybe the allure of Netflix is too strong or they can't be bothered. Again, I recommend doing research into the CIA's Operation MK Ultra started in the 1950's. Many answers lie there as to the mass brain washing of society. As the saying goes, it is easier to fool someone than to convince them they have been fooled. I doubt on any on this forum will to any extent look into MK Ultra and those that know already will keep quiet. That is the nature of the beast.
This morning I was watching a boring video that initially caught my eye about ancient portals to other worlds and dimensions. The video was crap but it got me thinking. There's lots of ancient legends and other myths about portals in mountainous areas and other strange places so this afternoon I looked for further videos or articles. I didn't really get any further but had I, I wouldn't have book marked the video or article for the reason I originally explained. I would end up with literally thousands of bookmarks which I would then forget what each one was for. Also, sometimes something relevant is mentioned within a video related to other stuff. How do I bookmark that?
I don't know if I've answered your question sufficiently but I hope I have at least explained my take on it.
Edit: If using the dark web, never open anything that doesn't seem right and never download anything. Also, never give out your email address. Most definitely, never try and buy anything. I once down loaded a game I was looking for having not found it via Google. That was that my pc wrecked. The utmost golden rule, never ever use a credit card. Simple browsing is fine and quite safe. Obviously good antivirus and malware software is recommended and I've never had a problem on this, a MacBook Pro, which is now 12 years old. I did however get an email from Southern Water recently saying my on line details with them have been hacked in to. So which is safer?