3. Martin John Bryant The Port Arthur massacre in 1996 remains the most documented and reported mass murder in Australian history.

Martin Bryant was 29-years of age when he killed 35- people in Tasmania and injured 23-others. He was diagnosed with borderline intelligence (IQ 66) and a cluster B personality disorder.

Martin was the first murderer in Australia to be sentenced to life without parole. Video – Matin Bryant, Port Arthur shooter, the previously unseen police interview | 7 News https://youtu.be/DCyZ br-75GO

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