That document is laughable. In only the first few paragraphs, I ran across reliable indicators of pseudoscience scams, like asserting that there's some "scientific establishment" that he's up against. Not a very powerful mafia then, because there are tons of dipshits pushing the lab leak hypothesis. Then, there's the Absence of Evidence Fallacy. (It is not evidence of absence.) That's as far as I got.
Go ahead and call me closed-minded, but c'mon, Ken should put his best evidence up front. If he has it, which I doubt. Especially when the alternative explanation is so damn plausible: The Wuhan Institute for Virology was put in Wuhan to study the viruses in local wildlife because Chinese authorities recognized the potential for human transmission, and so they built a lab to study the viruses. And that's why the lab would've had the virus in it. Maybe it did have a leak, and some infections came from there, but biological systems are messy and imprecise; the virus probably jumped to humans many, many times over many years, and set up the conditions for a pandemic.
Consider the HIV/AIDS epidemic in North America. We used to think that it all traced back to Patient 0, a flight attendant who liked to get busy around the world. Then, researchers found the virus in stored blood samples going back to the 1950's. The virus had been in the human population for decades before blowing up.
Reality is often complex, without intuitively-clear lines of cause and effect. The abstract thinking needed to understand it is beyond many people, so they latch on to simple, obvious, and wrong explanations, like the lab leak theory.
Throwing this out there: What if he really did kill himself, partly as a way to get back at the people who let him take the fall, because he knew it'd look super sus?