Watch: Gracie Spinks' parents speak about their need for answers

Richard Spinks and Alison Heaton told in a painful interview on what would have been Gracie’s 24th birthday how police had failed to “join up all the dots” linking a bag of “murder weapons” found opposite the stables just six weeks before her death - after she made a complaint made against her “stalker” Michael Sellers in February.

The backpack – handed into police on May 6 – contained three hunting knives, an axe, a hammer and a note reading “don’t lie”.