I think the truth is, nobody knows exactly who did this, and possibly nobody ever will.

My theory is that Yanyi and Zhengli released it themselves and were executed. That's why they haven't been seen since.

Then most people on the right think the CCP released it to take over the world - I can't think making people hate you this much is a good strategy.

Then there's the theory backed by most people with knowledge - Fauci did it, backed by EcoHealth. China was chosen due to low regulatory standards.