The casket of Otto Warmbier is carried to the hearse followed by his family and friends after a funeral service

Parents sue North Korea, saying Warmbier 'tortured and murdered'

The wrongful-death suit was filed in U.S. District Court at a diplomatically delicate time, weeks ahead of an expected meeting between North Korean leader Kim Jong Un and U.S. President Donald Trump. Kim and South Korean President Moon Jae-in also are set to meet on Friday. Apr 28, 2018