Last year, a 20-year-old named Christian Michael Mackey arrived at the Phillips 66 gas station in Grand Prairie, Texas, hoping to sell his AM-15 rifle to make some quick cash. He’d said he wanted to buy a more powerful gun, something that could stop what he called a “hoard of you know what.” Mackey told an online group chat he’d started looking at Nazi websites at around 15-years-old, when he began spending hours on white nationalist message boards and talking to other extremists on Instagram and encrypted messaging apps like Telegram. Five years later, he was active in a network of violent neo-Nazi groups that organized and communicated through online group chats. He described himself as a “radical Jew slayer.” When Mackey met his buyer in the gas-station parking lot in January 2021, he didn’t know he had walked into a sting. The woman purchasing his rifle was a paid FBI source with numerous felonies, and Mackey was arrested as soon as the gun changed hands. At his detention hearing a month later, an FBI agent said authorities had found a pipe bomb in Mackey’s parents’ house, where he lived. Mackey’s stepfather told local news soon after the arrest that his stepson had been radicalized online, and footage showed him ripping up a copy of “Mein Kampf” in Mackey’s bedroom. FBI records and court documents indicated that Mackey had posted more than 2,400 messages in one neo-Nazi Instagram group chat alone, and had told another user “I’m just trying to live long enough to die attacking.” (…) Canadian authorities earlier this year arrested a 19-year-old on terrorism charges after they say he tried to join a neo-Nazi group similar to the ones Mackey was involved in. In April, a 15-year-old in Denmark was charged with recruiting for a neo-Nazi organization banned in the country. A 16-year-old became the UK’s youngest terrorism offender after joining that same group, where he researched terror manuals and discussed how to make explosives. Others made it further along in their plots, like a 21-year-old who planted a bomb outside the Western Union office in Lithuania’s capital, Vilnius. (…) Experts trace the origins of groups like these to a neo-Nazi website called Iron March that went offline in 2017, and which notoriously helped extremists from many countries forge international connections and spread accelerationist propaganda.  The ideology has been linked to the 2019 Christchurch massacre in New Zealand, where a white nationalist killed 51 people at two mosques while livestreaming the attack online, and a shooting earlier this year at a supermarket in Buffalo, NY where 10 people were killed. As part of a joint investigation that Insider undertook with Welt Am Sonntag and Politico, reporters gained access to two dozen internal chat groups linked to a broader network of neo-Nazi accelerationists. Comprising 98,000 messages from about 900 users, the data includes photos, videos, text, and voice messages.

via inside: Inside an international network of teenage neo-Nazi extremists