So, apart from the presence of a dead man with a bullet wound in his chest and the bullet lodged in the wall behind him, there was no sign of drama in the flat. Harald Olesen was lying on the floor in the sitting room by a coffee table that was set for two. He had drunk from one cup and left his fingerprints on it, whereas the cup on the other side of the table was untouched. It would appear that Harald Olesen had been expecting someone for coffee and cake, but there was nothing to say who had visited him – or whether the invited guest was the murderer.
The remains of a meal of meatballs were still standing on the cooker and by the sink. There was milk, bread and cheese in the fridge for tomorrow morning’s breakfast. The radio on the kitchen table was plugged in. A Vienna Philharmonic Orchestra record lay ready on the turntable. Death had obviously come suddenly to Flat 3A in 25 Krebs’ Street.
By one o’clock on the morning of 5 April 1968, it was clear to me that there was nothing more to be gained from staying at the scene of the crime. I left one constable on guard on the second floor and another on the street outside the building. I asked the pathologist to send me a report as soon as possible, and requested copies from the census records and police records for all the residents of 25 Krebs’ Street. Then I sent everyone there to bed, but asked that they stay at home in the morning to be available for questioning.
It was already clear to me on the night of the murder that the murderer was in all likelihood one of the deceased’s neighbours. There was nothing to indicate so far that anyone else had been in the building that evening. Fortunately, I had no idea how difficult it was going to be to find out which flat the murderer had come from.