Senior Lecturer Dr Chris Wilson and his team researched the online postings of the Christchurch terrorist, and discovered he had been posting anonymously about his plans four years before the attack.
Chris talks about how they combined different methods, such as linguistic characteristics, to comb through thousands of posts and identify the attacker.
He explains how, if we understand how such people act, we might be able to detect and prevent similar atrocities in the future.
Read more about the research here: theconversation.com/christchu...