On June 12-16, 2009, a man using the pseudonym Peter Bergmann visited a seaport town in Silgo, northwestern Ireland.

During the investigation, the police gradually reached a dead end because of few clues about this man.

On 12 June, Bergmann was first seen at a bus park in Derry in the afternoon, and took the bus to the station in Sligo, carrying a black handbag and luggage.

While staying at the hotel, cameras recorded him carrying a purple bag filled with personal items.

When trying to find his belongings, local authorities were unable to determine where they were left, it is suspected that he left them in many places in town.

On June 13, he went to the Central Post Office and bought eight stamps and airmail stickers.

On June 15, Peter left the hotel and returned the keys.

He walked to the bus stop via Quay Street and Wine Street, still carrying three bags. While sitting down, he took out pieces of paper from the bag and read them.

He then boarded a bus to Rossess Point – where he was seen by at least 16 people walking to the beach.

During the investigation, it was discovered that his home address was just a vacant lot.

The victim’s cause of death was drowning.

Five months after the inquest, the man’s body was buried in Sligo.

This mysterious case can be compared to the Taman Shud case in Australia, where the body of an unknown man was found near a beach after World War II broke out.

The case received special attention in the 2010s.