Tortured to death in a cold blooded killing fuelled by jealousy and revenge...how Thomas Campbell was betrayed by a woman who claimed to love him

Mascara ran down Coleen Campbell's cheek as she heard her ex-husband's screams. She fought back tears, putting her hands over her ears as she listened to Thomas Campbell's last, terrifying moments.

Dressed all in black, with tied back, jet black hair, Coleen played the perfect grieving widow. The only thing that shattered this impression was the reinforced glass securing her inside the dock of a crown court.

In fact, beautician Coleen Campbell was not there as a grieving widow, praying justice would be done for her former spouse of 10 years. She was facing a possible life sentence accused of performing a key role in his brutal murder, one of the most shocking gangland killings in Greater Manchester’s recent history.

READ MORE: All the evidence in the Thomas Campbell murder trial

Here, in CCTV footage published for the first time, Coleen, then with dyed blonde hair, can be seen on the phone with the alleged 'mastermind' of the attack, just two hours before Thomas, 38, was ambushed at his front door. From the comfort of her front garden, wearing pink pyjamas, the mum-of-four plotted with John Belfield, a man she had apparently never met or spoken to until a week earlier.

Exactly what was said during that 25 minute call on a warm summer's evening will likely remain a mystery. But the fact that she felt the need to walk away from her home and her children during the call provides an ominous indicator of what the topic of discussion might have been.

Within the space of a few days, she and Belfield had formed an apparent alliance with a common goal., seeking revenge against their former partners.

Coleen began speaking to Belfield after her ‘toxic’ marriage broke down, and after Belfield’s ex dared to move on from him and