The body did not hold any documentation at the moment of his death. The only document that was found was a credit card from an Irish bank, which makes police believe his nationality could be Irish.

Police cannot ensure this card belongs to this person; therefore, there is not an official attribution regarding the name shown in it and the death body. 

It seems to be that the young man died a few hours before being found, and it is possible that it happened during night before the 6th. There were no apparent signs of violence in the body, so that, and so far, this tragedy it is considered as an accident.

The autopsy will be accomplished tomorrow Monday, which might offer the official cause of his death.
Police has been looking for a man from this early afternoon, another person who may know the young deceased. It is believed that both of them were staying at the same hotel in Pamplona.