South Korea has boosted to half a million dollars a reward for tips about the mysterious billionaire who prosecutors say owns a ferry that sank last month, The Associated Press reported. The ten-fold increase in the reward comes as officials struggle to find Yoo Byung-eun on allegations of tax evasion and embezzlement. Prosecutors said Monday that a failure to spend enough money on safety may be a reason for the April 16 sinking of the Sewol ferry, which left more than 300 people dead or missing.
