Barry took his time. If he made one mistake, he’d be caught. He stood on the garden hose, feet apart, holding it firmly on the ground, and used his knife to cut clean through it, before making a second cut to give himself a decent length of hose. He put the hose into a bucket, popped back inside to retrieve Mike’s Range Rover keys from his pocket and set off into the pitch-black night. Walking to the Range Rover, siphoning the petrol and walking back took Barry less than twenty minutes.

By the time he was ready to move the body, the blood in Mike’s hair had congealed, sticking his head and the side of his face to the carpet like red glue. Barry grabbed a handful of hair from the top of Mike’s head and peeled his face clear. Then he used all his strength to drag Mike’s body one-handed across the carpet and up onto the short, two-seater sofa, finally curling his legs up into the fetal position. Barry then used anything flammable to create a bonfire around him.

He poured the siphoned petrol all over the sofa and splashed the remains onto the stacks of £5 and £10 notes in the hearth. He then picked up the green garden waste bag, stepped outside into the front garden and lit himself a cigarette. The roses were doing well against the cold nights and, although they’d been left to their own devices, they still bloomed. Barry took in the silence and, once content that there was no one for miles around, he flicked his cigarette into Rose Cottage, picked up his green bag and headed back over the hills, on foot, the way he’d arrived.

Barry knew that, if he dared to look around, he’d see the dogs and the armed police hot on his tail. The weight of his small rucksack was slowing him down, but there was no way he was leaving it behind. As he ran, his Glock was clearly visible in his hand, although his dad’s Webley was hidden beneath his jumper.

With Barry actually in sight ahead of them, the dog handler pulled back and the ARU took the lead. The dog strained at the end of its leash and barked loudly in protest at being taken off the job before he’d caught his prey.

“Barry Cooper! Armed police! Stop running!”

Barry ran on as he cycled through his options. There were only two . . . live or die.

“Stop and throw down your weapon!”

And then, from up ahead, the sound of a train approaching.

For the lead Armed Response Officer, time slowed as he processed all of the possibilities in a split second. Barry Cooper was so desperate to escape, he reckoned he’d definitely attempt to cross in front of the train. And he’d not think twice about firing his weapon to make the situation even more dangerous. The lead officer instructed two of his men to cross the track and shouted out again.