Girls from Nottingham Girls' High Junior School are releasing a single for their friend, Rose Whittle, who was diagnosed with cancer two years ago and died earlier this year.
The song is called 'Always in Our Hearts'.
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"She tried to take hold of the knife to stop him. He told her not to shout out and scream and get on her knees and beg."
A minute-by-minute witness account of the battle has been found and entries from the diary will be tweeted in real time on the anniversary.
"He was so matted that he barely resembled a dog at first glance. His fur was covered in faeces and it was completely covering his eyes."