The sisters of murdered schoolboy Rikki Neave have called for a review of his killer's "lenient" 15-year prison sentence.
James Watson was 13 when he lured Rikki, six, into woods in Peterborough before strangling him to death on November 28, 1994.
Watson, now 41, was handed life in prison with a minimum term of 15 years at the Old Bailey on June 24.
