Corona virus's are very common in bats in China, with over 300 know variants. Additionally they pass easily from bats to humans, such as when humans in rural area's camp in bat caves. Either this exact strain, or one very similar to it was note in wild Chinese bats 3 years ago.
There was a very similar virus created in the Bio Canada lab, who happened to have two Chinese scientists there helping...the very lab where Chinese scientists stole it.
The very same two Chinese scientists that helped to create it in Canada, just happen to be working at the BIO lab in China....where the outbreak originated...hmmmm.