Otto Frederick Warmbier (C), a University of Virginia student who was detained in North Korea since early January, is taken to North Korea's top court in Pyongyang, North Korea, in this photo released by Kyodo March 16, 2016. Mandatory credit REUTERS/Kyodo Mandatory credit REUTERS/Kyodo/File Photo

Otto Frederick Warmbier (C), a University of Virginia student who was detained in North Korea since early January, is taken to North Korea’s top court in Pyongyang, North Korea, in this photo released by Kyodo March 16, 2016. Mandatory credit REUTERS/Kyodo Mandatory credit REUTERS/Kyodo/File Photo

Otto Frederick Warmbier, a University of Virginia student, died June 19 after being returned from detention in North Korea in a coma. Photo: Reuters/Kyodo

July 11, 2016 2:34 PM (UTC+8)