Three thieves, Edgar, Darío and Guillermo are suspected of robbing a bank. The trial reveals that: either Guillermo is innocent, or Darío is guilty. If Darío is guilty, Guillermo is innocent. Edgar and Guillermo have never docked together, but Edgar never acts alone.
Therefore, if Darío is guilty, will Edgar be too?
Who are to blame?
The culprits are Edgar and Darío.