Mother of Sewol victim travels 3,100km in 21 days to raise awareness about investigation into ferry tragedy hani.co.kr - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from hani.co.kr Daily Mail and Mail on Sunday newspapers.
While no single cause has been found to be conclusive, investigations have shown that putting profits over safety was a contributing factor to the sinking of the ferry, which claimed over 300 lives