The sisters of a teenage boy who died following an incident at a lido in north London 40 years ago say their mother never got over his sudden death.
Enrico Sidoli died in hospital in July 1976. He had been pulled unconscious from the Parliament Hill Lido in Hampstead 11 days earlier.
At the time, witnesses said the 15-year-old had been involved in an argument with a group of boys, assaulted and then thrown into the pool.
Today detectives released a photograph taken shortly after he was rescued from the bottom of the pool and are appealing for help to identify everyone in the image.
Enrico's sisters, Elizabeth and Lolanda say their mother never recovered and died of a broken heart years later.
Two people were arrested at the time but no one has ever been charged. There is now a £40,000 reward for information.