Conjecture is fun but when actually assessing the whys of something, facts are key, not what ifs. Maybe it was a meteor strike, or perhaps alien abduction, or maybe it was a Mission Impossible scenario of an escaping scientist trying to get away from the evil corporate armies. . .those MAY have happened. . .before an investigation revealed the facts of the why (cause). You go where the facts lead you. Anything beyond fact-based analysis is mere conjecture.
Have a nice day. Game over.
But hey, I like a good conspiracy like the next guy. They are fun to play with.
Of course you do. That's why you're ruling out possible causes before any evidence has been found.
It's telling that you think terrorism is just as likely as alien abduction, though.