Liam Lyburd, 19, used Bitcoin to buy explosives and guns as he planned to attack his former college.
This was heard in court today, he also allegedly used Facebook to post a string of rants where he mentioned ‘killing a bunch of people’.
Among the haul of weapons found by police which he was planning to use to attack the Newcastle college were a 9mm, Calibre Glock gun, 94 hollow-point expanding bullets, five pipe bombs and two homemade explosives.
Lyburd pleaded guilty to nine charges relating to the arms collection, but denies eight counts of possessing the weapons with an intent to endanger life.
Police originally got a tip-off from a friend about the Facebook rants in November which led to the teenager’s arrest.
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The boy’s mother then took the arresting officers upstairs to the stash of weapons.
He then stated that he had intended to carry out a mass murder at Newcastle College that very day and that the officers had saved lives, preventing what would have otherwise been a massacre at the college. He repeated to them that it had been his intention to blow up the college and, as he put it, "to shoot a bunch of people", laughing as he was transported to the police station and speculating that he would get four years for it. Prosecutor Nick Dry said.
Those were items the defendant accepted in interview he had bought using bitcoins, the decentralised internet currency, from the dark or deep web, the black market where illegal commodities are know to be traded. Mr Dry added, hinting that the teenager’s case was weak.
Furthermore, the boy's YouTube account contained videos of him demonstrating how to load and shoot a pistol, and another concerning going on a killing spree.
A note was also found which read out:
'You people ruined my whole life don't expect me to show mercy today. No one disrespects me and gets away with it.
'I'll teach you people a little lesson on respect with my 9mm jacketed hollow-points. It's time for extreme civil disobedience.
'Fantasy will become reality today for sure. Where the mind goes the body will follow and yes people will die there's no question about that.'
The trial is expected to continue for the foreseeable future.