Summary
Online accounts linked to gun attacks that killed 49 people and wounded at least 20 at two New Zealand mosques Friday had in recent days circulated white supremacist imagery and extreme right-wing messages celebrating violence against Muslims and minorities on social media and message boards. A gunman broadcast live footage on Facebook of the attack on one of the mosques. Police later said four people, whom they did not identify, were in custody and one had been charged with murder over the country's worst ever mass shooting.
The Twitter handle @brentontarrant Wednesday had tweeted pictures of one of the guns later used in the mosque attacks in the city of Christchurch.
The Twitter profile had 63 tweets, 218 followers and was created last month.
It also linked to a Facebook page for a user called brenton.tarrant.9, where the attack was livestreamed.
The @brentontarrant Twitter account was suspended not long after the shooting, as was the brenton.tarrant.9
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