I'm a native Seattleite, gen Xer who lived thru the whole grunge thing. On local cable public access there was a series of "Kurt Cobain Was murdered" shows all hosted by the same unhinged conspiracy kook. He would scour the evidence for inconsistencies, ambush officials involved in the investigation, weave plausible counter narratives and so on. I thought it was hilarious.
Now I live in Dallas and any day of the week you can go down to Dealey plaza , check out the book depository and the grassy knoll, along with the two big X's painted on the road where the bullets struck JFK. And, most days, there an author with a table set up selling their latest book.
Personally I am a fan of Occam's razor.