A married couple on the verge of separation are leveled by the news their 18-year-old son committed a mass shooting at his college, then took his own life.A married couple on the verge of separation are leveled by the news their 18-year-old son committed a mass shooting at his college, then took his own life.A married couple on the verge of separation are leveled by the news their 18-year-old son committed a mass shooting at his college, then took his own life.