A 22-year-old South Korean college student who travelled to Cambodia during the summer holiday was found dead two weeks after his departure, reportedly after being kidnapped and tortured by a local crime group. Authorities said the student died of cardiac arrest caused by severe torture.According to police and family members, the student, identified only by his surname A, left his home in Yecheon, North Gyeongsang province on July 17, telling his family he was going to attend an exhibition in...