"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
A sports coach from Nottingham who set up a charity to help youngsters is leaving to take up a key role at the Football Association.
East Midlands Ambulance Service are asking people to think twice before dialling 999 this Christmas, as it's stretched to the limit.
Genelle Aldred brings you the latest weather for the West Midlands.