I recently learned something funny/alarming/scary about Mormons. Back in the 1800's, they would welcome groups of settlers into their community, kill them at night and take their children and brainwash them into being Moron.

Post sources.

I'll try to find some, it was told to me by US History teacher.

US history teachers say a lot of crazy stuff.

Well, I talked about it to a few people, and some of them already knew about it. I've only been able to find some websites talking about Mormons killing people, but none about them taking children.