to see monea tyson.in all the years that i've been doing this, i've never heard of that before. the jurors hugged her, they cried with her, they asked her when she was going to see her kids again. >> thompson: another problem in the child cases that we uncovered-- there is little agreement among medical experts on what causes children to die unexpectedly. pediatric science has undergone a revolution in recent years. one diagnosis, in particular,!-/ has come under fire-- shaken baby syndrome. take this case from decatur, georgia. i came here to meet melonie ware. ♪ ware was a daycare provider convicted of shaking a nine-month-old baby to death. she was sentenced to life in prison, but in 2009, at a retrial, the medical examiner's findings were called into question, and she was acquitted. >> all my life, i've loved children, just playing with children, being on their level. that's what i liked to do. >> thompson: it all began when ware, a certified childcare provider, was watching jaden paige at her home d