"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."
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The flight from East Midlands Airport to Faro developed a 'minor fault indication'.
Carl Campbell, 33, died after shots were fired into his stationary vehicle in a gangland style killing.
"I've decided that because I'm going to lose my hair anyway due to the side effects of the chemotherapy, instead I will shave it off."