Elsie Frost case: Brother 'told no more could be done'

Fifty years ago next week a 14-year-old school girl was brutally stabbed to death on a canal towpath in Wakefield, West Yorkshire.

Now officers re-examining the crime, prompted by a BBC investigation, have uncovered new lines of enquiry.

The BBC's Frankie McCamley has been speaking to Elsie's younger brother, Colin Frost, and DCI Elizabeth Belton of West Yorkshire Police.