On March 15 2019 a gunman opened fire on two mosques in Christchurch, killing 51 people. Officially, he acted alone. But what if that wasn’t the full story?

In Secrets We Keep: Lone Actor, journalist Joey Watson digs into the digital underworld that shaped Brenton Tarrant — a 28-year-old Australian radicalised online and armed with a global ideology.

Joey retraces the steps of the terrorist and asks: Was he really acting alone? The series journeys from the darkest corners of the internet to the other side of the world, exposing the murky forces behind the deadliest terror attack ever committed by an Australian.

Binge the full series of Lone Actor exclusively on the LiSTNR app, download the app for free. New episodes released weekly.

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