After Hana's death, The New York Times reported that the couple's abusive parenting tactics had mimicked instructions from Christian parenting book To Train Up a Child. According to the report, Carri Williams had recommended the book to a friend and beaten Hana with a plastic tube---a device recommended in the book.
MORE: http://www.christianpost.com/news/american-parents-convicted-of-manslaughter-in-death-of-adopted-ethiopian-daughter-104232/