Nikki was a shy seven year old girl. she was last seen in october 1992, skipping after a man. she was being lured to her death. david? that man was david boyd 25 years old at the time, now 55. we re part of the team that s re investigating - the murder of nikki allan. advances in dna evidence found traces of him on nikki allan s clothes. david boyd hid his crime, lying about his involvement and prolonging the family s suffering, knowing all along that he had taken the life of their little girl. nikki lived in a ground floor flat on this estate in sunderland. her killer lived on the third floor of the block. the whole estate has since been demolished. her body was found dumped in this derelict building, not far from her home.