Courtesy of Investigation Discovery Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Investigation Discovery's The Cult Behind the Killer: The Andrea Yates Story is adding a new layer to the 2021 case, claiming a rogue street preacher influenced the mother who drowned her five young children. The three-part series airs consecutively on Tuesday, Jan. 6, from 8-11 p.m.