Police are investigating whether a prison stabbing between two members of the deadly Brothers For Life gang is linked to the execution of Mejid Hamzy outside his home in Condell Park in Sydney's south-west.
Vision of the violent incident inside John Morony Correctional Centre at Windsor has emerged which allegedly shows an inmate attacking Mohammed "Little Crazy" Hamzy, a cousin of Mejid and the notorious criminal Bassam Hamzy – who is in Goulburn supermax prison for a string of criminal convictions including drug supply, murder and conspiracy to murder.
Mohammed Hamzy founded Brothers For Life over a decade ago with Bassam and another cousin, Ghassam Hamzy.
CCTV from inside the prison allegedly shows Mouhammed Houri lunge at Mohammed Hamzy, stabbing him three times with a metal shiv on Friday afternoon.
A prison officer throws himself between the pair but is wedged in the middle as Hamzy fights back, swinging several punches at Houri.
As officers drag Houri back, Hamzy appears to grin as he walks backwards and raises his middle finger in the direction of the man who was once a member of the same Blacktown chapter.
Police are bracing for a bloody gangland war after Mejid's shooting death last Monday.
Police sources told Nine News they are not ruling out anything and are investigating a number of motives including whether Mejid was killed following a drug turf war, a fight between a rival crime family, or whether this is an internal gang war.
The prison stabbing is the latest bloody chapter in the Hamzy family history book.
Mohammed Hamzy is lucky to be alive after being the intended target of a hit at Revesby in October 2013 but in a case of mistaken identity his cousin Mahmoud Hamzy was shot dead.
Aunt Maha Hamzy has escaped death too, after she was shot in the legs inside her Auburn home in 2013. The same townhouse was a target of a drive-by shooting last Saturday night.
NSW Police Criminal Groups squad is leading the investigation into Mejid's death and believe his execution was carried out by two professional killers who lay in wait outside of his home.
They are now reviewing CCTV and the route the killers took after torching a getaway car in nearby Yagoona.