On the nine-hour drive from their home in California's central valley to the Marine Corps' Camp Pendleton, south of Los Angeles, Peter Vienna and his wife wondered what had happened to their son.
This is one of five hearings set to take place that will look into Marine Corps leaders and determine if any of them played a role in those nine deaths.
Relatives of servicemen killed during sea training exercise off San Clemente coast sue vessel maker foxla.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from foxla.com Daily Mail and Mail on Sunday newspapers.
Heartbroken parents to sue a year after 9 troops died at sea off SoCal coast foxla.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from foxla.com Daily Mail and Mail on Sunday newspapers.