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#BBCtrending: Ashya King brother's YouTube savvy

3 September 2014 Last updated at 12:32 BST

Naveed King was a video blogger posting antics with his friends on YouTube, like many other 20-year olds. But after his little brother Ashya fell ill and was diagnosed with a brain tumour, and his family fled to seek treatment abroad, his YouTube channel became a highly effective one-man PR operation giving their side of the story.

Video journalist: Greg Brosnan

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