My sympathies to the Koppel family.
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I agree with the six influences.
Along with prayer. PRAY for your kids, too.
Stormie Omartian has a book, “The Power of a Praying Parent”
more info,
http://www.stormieomartian.com/bookstore.html
Better link,
http://www.stormieomartian.com/store.html?cat_name=Parent