A researcher into the alt-right believes a letter sent from prison by the man accused of the mosque shootings will have been widely shared after being posted on 4Chan.
The Corrections Department has confirmed the accused mailed a six-page letter and it was then posted online.
Earlier today, Corrections Minister Kelvin Davis told Morning Report that the accused has sent a total of seven letters.
Ben Elley is a senior researcher at Independent Research Solutions in Christchurch, who has been studying the alt-right and white nationalism. He spoke to Corin Dann.