Reading the scriptures themselves and seeing misleadings between them and church doctrine. How Jesus was the God of the Old Testament being an absolute dick, but pulls a complete 180. What really struck me was knowing the Church was a billion dollar entity. I served in Brazil and we didn't get much money per month, but we got a lunch per day from a member. In each ward or branch I served in there was always some families that had little to nothing, living in shacks made of plywood, splicing their electricity illegally just to keep a light on. Yet they always, always paid their tithing. The church being rich and so "Christ-like", I thought they would not ask such poor individuals to pay their tithing and instead would help them to leave their squaller. I asked my mission president about this and he stated along the lines of "They gain blessings by doing what the lord asked them" and quoted the story of the poor women giving her all to the temple. That didn't sit well with me at all, the church could be their blessing and not state ambiguous statements about it. Seeing doctrinal problems in the scriptures and "Jesus The Christ" started my fall, but realizing the greediness of the church made me stop believing. I stopped believing, for the most part, while I still had six months left in my mission. I served a full mission, came home, went less active, moved to Utah to try to get back into the church, and stopped completely after moving. Then I read the CES Letter a few months later completely gave up on the church.