lydia schats was just 7 years old when she was beaten to death in the name of god. ced a word during a home schooling session. that was her so-called sin. lydia's parents pleaded guilty and were sent to a california prison. they claim they were following the teachings of a man named michael pearl, who is spreading his gos pel through a book he wrote with his wife, called to train up a child. the pearls wrote it as a blueprint for raising children the way the bible demands. but they say they're not to blame for what the schots did to 7-year-old lydia. they explained it to our gary tuchman. >> i don't use the word hitting. >> what is the word is this. >> spanking. >> there's a difference? >> a little switch is spampging. a wooden spoon or rubber spatula is spanking. >> why not just use your hand instead will all these materials? >> let me show you something. does that hurt? doesn't feel good, but look what it's doing to your whole body. here's your hand on somebody, that's a karate chop. >> you say when you use this material, that it can't cause a permanent -- >> my ch