A convicted murderer was "overwhelmed with paranoia" when he slashed at notorious crime boss Bassam Hamzy with a shiv in the prison yard.

Ricky William McNamara, 32, approached the Brothers 4 Life founder in the exercise yard used by high-risk prisoners at Goulburn Supermax jail on December 21, 2023.

Both men had been searched in their cells and handcuffed before being brought out to the exercise yard, which was otherwise empty.

As he was being uncuffed, McNamara reached into his pocket and pulled out a shiv, Goulburn District Court was told today.

The convicted killer turned on Hamzy, who was still restrained, and thrust the weapon towards his upper chest and head.

Both men "assumed a fighting stance" and Hamzy blocked the blows with his bound hands and kicked out towards McNam

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