A post-mortem examination carried out on Monday found that Michael Pedersen died as a result of a number of stab wounds to the chest, according to Hampshire Police. Post-mortem examinations on the two children are to be held later.
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James Page, 36, from Sidcup, had been in training for an ultra-marathon and the London Marathon, but both were postponed.
Police have described it as a ‘shocking incident’.
Gatwick Airport has announced it will reduce its operations from April 1. It will close its north terminal and reduce its runway hours.