Notorious convicts trade punches in prison yard brawl

New vision shows two of the most notorious prisoners in New South Wales going head to head in an apparent struggle for power.

The video shows convicted killer Bassam Hamzy being repeatedly punched by Talal Alameddine inside a yard at Goulburn Supermax prison last October.

Hamzy was jailed after he shot dead Kris Toumazis in Paddington in 1998, wounded one friend and shot at another.

He converted to Muslim while behind bars and founded the violent Brothers 4 Life gang, making  460 calls a day on a mobile phone which was moved between cells using dental floss.

He is now serving a combined maximum sentence of more than 40 years.

Alameddine was arrested in 2015 and jailed for a maximum of 17 years for supplying the gun which was used to execute police accountant Curtis Cheng in the Parramatta Police Headquarters terror attack.

Both have now been charged with affray over the punch last October but are yet to enter pleas.

They face a maximum of ten years behind bars on top of the terms they’re already serving.