teeth in. >> reporter: after the arrest, maggie confronted valerie. >> and i just kind of said, listen, you are under some sort of spell right now. this monster has gotten you into some trouble and you need to fight like hell. >> reporter: what did she say? >> she did not understand what was happening. she just seemed off. terribly, terribly sad. >> reporter: at home alone, valerie recorded an audio diary on her ipad. >> hey, it's valerie. >> reporter: she recounted how, back when her marriage to mack was crumbling, she ran into her neighbor's son, leon. >> i was completely turned off immediately by his attitude, because you could tell he knew how beautiful he was. >> reporter: but over time, valerie, like meghan before her, thought she saw something in him. and as with meghan, leon