A family liaison officer has read out a statement on behalf of Craig De la Haye - a Jersey man whose wife Marta and five-year-old daughter Julia were both killed by Damian Rzeszowski.
They were both visiting the property where the Rzeszowskis lived when Damian turned on his own family.
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PM used a speech in Hamburg to say that the UK will not 'pull up the drawbridge and retreat from the world' but Europe must change.
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The Independent has announced it is to cease publication and go online only from the end of March.