No one bothered to keep an eye on the crime scene, so by the time the police finally did arrive, most of the bags had disappeared from the sheets, even from the one on which the body lay. Some of those who stole the dead man’s bags left red footprints on his sheet; one set disappeared towards Rialto in a bloody trail.

The first officer on the scene, Alvise, approached the small crowd that still stood near the dead man and ordered them to move back. He walked over to the man’s body and stood, looking down at him as if confused as to what to do now that he could see the victim. Finally, a lab technician asked him to move aside while he set up a wooden stanchion, and then another, and then another until they ringed the sheet. From one of the boxes the technicians had brought to the scene he took a roll of red and white striped tape and ran it through slots in the tops of the wooden stanchions until a clear demarcation had been created between the body and the rest of the world.

Alvise went over to a man who was standing by the steps of the church and demanded, ‘Who are you?’

‘Riccardo Lombardi,’ the man answered. He was tall, about fifty, well-dressed, the sort of person who sat behind a desk and gave orders, or so thought Alvise.

‘What are you doing here?’

Surprised at the policeman’s tone, the man answered, ‘I was walking by, and I saw this crowd, so I stopped.’

‘Did you see who did it?’

‘Did what?’

It occurred to Alvise only then that he had no idea what had been done, only that the Questura had received a call, saying that a black man was dead in Campo Santo Stefano. ‘Can you show me some identification?’ Alvise demanded.

The man took out his wallet and extracted his carta d’identità. Silently, he handed it to Alvise, who glanced at it before handing it back. ‘Did you see anything?’ he asked in the same voice.