Nothing is sure but when you accumulate the amount of evidence it's a high probability that it's from there.

Wuhan's P4 lab is historically known to have had confinement trouble and some strains of the SARS in the past have escaped, you can find journals from 2014~2016 about this.

What is sure now is that it's man made, it was first suggested by Indians at the Kusuma School of biological sciences, Indian institute of technology, New Delhi-110016, India.
See the paper named "Uncanny similarity of unique inserts in the 2019-nCoV spike protein to HIV-1 gp120" I added the pdf to this post since no website who distribute it can't work with tor or icecat/ublockOrigin.
Besides the uncanny/unnatural findings which points out that it was modified by men they also found pieces of HIV in it.
Then it was confirmed by "Luc Montagnier" on live TV a few days ago see:https://loadaverage.org/conversation/13685086#notice-19090768.

And also a few days ago researchers "found" that SARS-CoV-2 also uses HIV/Ebola's packing mechanism:
https://loadaverage.org/url/5906174

As for is it a bioweapon ? Again we can't be sure.
Imo it's a prototype of a cure and it escaped.
As for china, it has been doing nothing but lying since the beginning to avoid possible responsibilities thus it doesn't help it's case when they try to say that it was their Bat/snake soup that mutated to infect humans, or that it was the US who did it. https://loadaverage.org/attachment/5908204