Most of us think we're incapable of making such a horrible mistake. So did the parents in this story. By Andrea Barbalich from Parents Magazine Bill Milne It was Day 3 of a new routine for the Edwards family. Jodie, a professor and counselor at a private university in Cincinnati, had spent the summer of 2008 working two days a week and taking care of her two children: her then 3-year-old son and her 11-month-old daughter, Jenna. On the days Edwards worked, both children staye