This guy's website looks pretty out there. I wouldn't trust his conclusion. He looks to be well outside mainstream science who had already decided it came out of a lab.
I also could not find a wikipedia article about him.
I read it was discovered in a Chinese lab that did studies on animals. Then, the dead animals were sold to the Wuhan wet marketing knowing that the animals had disease. Is this not true?
In case this question is actually being asked in earnest, there's little evidence for any particular origin beyond that the first outbreak of noticeable size in humans happened in Wuhan in late 2019. The exact mechanism that led to the virus being introduced into humans from (presumably) bats is unknown.
I would be _extremely_ sceptical of wherever you read that in future. It would appear that they've taken two dubious (and in the case of the lab one, verging on the conspiratorial) origin theories and clumsily mashed them together.
I'm sure just about every plausible (and implausible) theory has been floated somewhere. This document reemphasizes the point that we simply don't know what happened, although it presents an interesting hypothesis.