No, check https://en.wikipedia.org/wiki/Matsumoto_sarin_attack
There are a lot of interviews with former cult members around. They had armed helicopters, a testing station in western Australia, produced piles of sarin. This wasn't a lack of science knowledge that screwed them up, they notoriously involved the elite class of Japan - it was a whole other category.
There is no link between AI and bioweapons that makes this stuff any more reasonable than availability of detailed descriptions of nuclear reactors enables us to be purifying weapons grade plutonium in our yards.