The police are trying to track down a German woman,I think. She was the wife of a Brit,living in Portugal and they had a number of children,one of which died on the road when the door of their vehicle flew open and the child fell out and was killed. This is how the story went anyway.
Earlier in the investigation,this couple were interviewed and his name was always cropping up Raymond Hewlett. However,as time went on,he died in hospital where police had refused permission of the British police to interview him there.
To my knowledge,his wife/widow is still alive and probably knew more about her late husband than she was letting on. Hewlett was a known paedophile and a very dangerous man around children.
Why police didn't zoom-in on him in the first place I'll never know. He could have been extradited back here for some serious questioning but the PJ's seemed reluctant for any pressure to be put onto their own police force,or to the detriment of their country's reputation as a " safe place for children on holiday ".