Used his position as a pastor to recruit others. Not only in America sadly. And you do have to wonder how long it will be before the mad fringe, do, find a way to mount a really mass scale terrorist attack, probably in America. I strongly suspect that the US laws on the ownership of things like lab equipment and supplies, are no better thought through than your gun laws.
There is also the attack on the Tokyo subway system in 1995: [en.wikipedia.org]
I wonder how he became such a badly damaged person.
Another racist Boer! Gotta wonder what it is about Dutch colonists’ intolerance and bigotry!