The Fifth Commandment - Honor Your Father and Your Mother

After interviewing the parents of Columbine Killer Dylan Klebold, David Brooks in an article for the New York Times exonerated them from all blame stating that what their son did went against how he was raised by this thoroughly modern, intellectual, mild-mannered, and non-religous family and sought to find blame elsewhere in external circumstances. But is that assessment valid?

Why is it that in the 19th century, when guns were common in America and explosives were uncontrolled children did not go to school and kill their classmates or attempt to blow up the schoolhouse. Could it have had something to do with the way they were raised and specifically with the biblical worldview they were taught? Is it just possible that the trendy nihilism and denial of God and any lawful authority in our society is actually part of the reason that the children of today DO kill their classmates?