On a summer's day on Jersey in 2011, Damian Rzeszowski annihilated his family in a frenzied attack

Jersey and the other Channel Islands are the last of the territories of the medieval Dukedom of Normandy. It’s a British Crown dependency but isn’t part of the UK or European Union. The island is traditionally seen as tranquil and peaceful. The usual bombings and battles that characterised the Second World War didn’t occur on Jersey. There was suffering but the islanders either evacuated or surrendered to the occupying Germans. And likewise, those same Germans surrendered when Allied Forces arrived off the neighbouring island of Guernsey. More recently, over a hundred people came forward over abuse they had suffered from the 1960s onwards in Jersey’s children’s homes and fostering services. But until that scandal, the worst that was levelled against the place was that it was a tax haven for the rich. For most, Jersey is an idyllic holiday island with lots of sun drenched beaches. It has nice village atmosphere - its population is below 100,000 - and the pace of life is slow. All in all, it’s a perfect place for a couple to raise children. It has a number of integrated ethnic communities. Not only are there English, Scottish, Irish and Welsh, there is also a strong Portuguese and Polish presence. In August 2011, there had not been a murder inquiry for the last seven years. But that month, five people would die and another would be in a critical condition. Jersey’s emergency services had never dealt with anything on such a scale. On one lazy summer Sunday, Jersey went from serene calm to a scene of carnage.