On my own. Reading my sons world history book on the crapper, I noticed it said the fall of Babylon was in 586/587 instead of 607 as always thought. Did some internet searches on the topic that led me to some apostate info. I was determine not to read that so, I researched this period using non-apostate books from the university library.
That lead me to the H2O discussion forum. There I learned of Ray Franz book. Went back to the University library every day on my lunch break to read C of C because I was to paranoid to check it out. It took me about two months to read it 30 minutes at a time back in the corner of the library with another book in front of it, in case a JW happened to walk up and see me. It was all over after that.
Saw many people over the years at conventions with signs and never gave it a second look. Ironically it was things that were said from the convention platform that drove me away and the lack of love shown during one the worst crisis in my life.