"Second time in and out" is Hot Topic in Korea.

● The discovery of the body of medical student in Han River.

● The moment when a fellow student who was drinking with him until just before his disappearance goes in and out from the riverbed with his smartphone "Galaxy 20". Testified that his iPhone 8 was lost.

● White athletic shoes the first time ghoing in and out after disappearance. The second time, changed of clothes and wearing sandals.