Well, Tesla invented alternating current...not "electricity." Direct current systems were already in use, particularly by Thomas Edison, his nemesis. Some death rays (laser weapons) use chemistry. Others use electricity to charge up the system (probably not AC at the end of the process). Did Tesla demonstrate wireless electricity? No, he did not. Don't confuse claims with demonstration.

I'm sorry, but there is nothing "untimely" about an 86-year-old man passing away in 1943 after the starvation and lack of medical attention resulting from dementia. (I had a great aunt who passed away similarly.) One might be more surprised that he lived as long as he did.

So far as there is evidence of anything, the "death ray" was just an idea, never reduced to writing or mechanism. He wasn't murdered. The FBI seized his papers, assessed them for danger potential, and remanded them to Tesla's heir. No melodrama required. It is just a shame that his dementia (and ingrained habits) sent him to an earlier death than necessary, and robbed him of his scientific lucidity.

My public contribution to the field was in connection with the YAL-1A Airborne Laser. https://en.wikipedia.org/wiki/Boeing_YAL-1 As an anon, I prefer to remain anonymous. Also, most of my applicable work is unpublishable, for classification and proprietary reasons.

Don't get me wrong. I greatly admire Tesla, but he had his faults. I think his bladeless turbine might be a great innovation for rocket turbopumps, but who can I convince of that? It may be fair to say that his work in high-frequency, high-voltage systems went beyond contemporary understanding. Who can pick it up? Maybe Charles P. Steinmetz, but he's gone, too.