The San Diego shooter even cited a notorious lie dating from the 15th century that Jews had used the blood of a Christian boy to bake their Passover matzos. TodayвЂ™s Internet anti-Semitism is based on very old lies, at the bottom of which is the belief that the Jews are an alien, parasitic force conspiring against their host, in this case supposedly the white race. The San Diego shooter aped his hero by also posting a similar long manifesto to the site and attempting to livestream his crime. He explained that he was inspired by the Christchurch mosque shooter, who killed 50 in New Zealand and came from the same white-nationalist 8chan sewer.

The San Diego shooter attested to how quickly heвЂ™d been prepped for mass murder by 8chan, where white nationalists push one another to undertake acts of violence that they call вЂњreal-life effort-posting.вЂќ He said he never could have imagined killing even a few months ago, and that he planned the attack in four weeks. What happened two decades ago with the Columbine shooting - which set the predicate for years of copycat killers, each soaked in the iconography of Columbine and seeking his own moment of notoriety - is being replicated by a loose collection of sick racists.

WhatвЂ™s disturbing about the latest spate of violence is the common thread of white-nationalist ideology, propagated and readily available on the Internet and developing its own twisted culture of mass shootings. arenвЂ™t new either (several occurred while George W. Anti-Semitism is a millennia-old phenomenon, and anti-Jewish shootings in the U.S.

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