The story about him going to a forbidden floor of hotel and stealing a flag was a LIE. He was forced to comp to that but it wasn't true. The video shown was not Otto.
Idk why he was detained. Or why Clowns who run NK would imprison him if he himself was an asset. They obviously believed he had some kind of information and tortured him to death. It will be nice to get to the bottom of that.
Very important piece of the puzzle.
More likely