A Gloucester teenager who was obsessed with mass murderers has been jailed for 16 years after he bought a gun and ammunition online.
Kyle Davies used the cryptocurrency Bitcoin to purchase a Glock 17 handgun and five rounds of ammunition from the dark web.
American Homeland Security officers intercepted the order in New York and tipped off British police, who arrested Davies after they delivered a fake package to his home.
The 19-year-old said he had bought the gun to kill himself and denied planning a mass shooting.
But when officers searched his home they discovered handwritten notes and a USB that contained more than 1,000 pages related to explosives and massacres.
Judge Paul Cook said the material found by police was “disturbing and chilling”.
“The material you extensively gathered over time was graphic and unpalatable. It ran to thousands of pages. You had taken practical steps as to how to put your plans into execution,” he said.
“You worked out your budget, which was in excess of £10,000, and you priced the equipment to assist you in carrying out a mass killing.”
The court heard Davies had researched “in detail” the Columbine High School shooting and Norwegian mass murderer Anders Breivik.
He had a document labelled “phase one” that featured a shopping list including a gas mask, trench coat, gloves, boots, body armour and a leg pistol holder as well as ingredients for explosives.
Detective Inspector Kevin Till said he believed a “potential mass casualty incident” had been prevented.