Who was Holly Newton?published at 09:44 Greenwich Mean Time
Holly was a 15-year-old girl from Haltwhistle who loved to dance.
Her mother Micala Trussler said she was a "caring and thoughtful young lady" and it was "no surprise" MacPhail would "fall" for her.
She said Holly tried to help MacPhail with his literacy, getting books out of the library to read with him.
Holly had a "strong sense of right and wrong" and was a "quiet" girl who found talking to strangers "awkward".
The pupil at Queen Elizabeth High School in Hexham was beloved by her three siblings and this year her biggest worries should have been getting her GCSE results and preparing for her prom.
Instead, her future had been "selfishly and mindlessly" taken away, Micala said, adding her daughter would never get married or have children, and her family would never be able to see her grow into a young woman.