"The whole family cry together in agony when we imagine our children lying in blood.
If the emergency call had been handled properly it would have saved lives, even caught the perpetrator.
Our paramount aim is to work together, solve the case and catch the perpetrator."
More top news
Police are concerned for the welfare of Samantha Baldwin and her children, nine-year-old Louis Madge and six-year-old Dylan Madge
Gareth Morgan has been appointed, subject to being ratified by the Police and Crime Panel.
The new £15.7 million facility at the National Memorial Arboretum in Staffordshire is being officially opened tomorrow.