Fourth person charged over fatal Sydney stabbing

A fourth person has been charged after a violent brawl left a man dead and another fighting for life in Sydney's west.

NSW Police said a 19-year-old man was arrested and charged with affray at Mt Druitt Police Station last night.

He was refused bail and will appear at Parramatta Bail Court today

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Emergency services were called to Catlin Close, Whalan, at 7.30pm on Wednesday following reports of a stabbing and found three men with stab wounds.

Police allege two groups met to settle a dispute over a stolen PlayStation and a cat.

Matthew Smale, 40, was stabbed in the neck and died at the scene.

His 19-year-old son, Jaiden, suffered multiple stab wounds to the chest and was taken to Westmead Hospital in a critical condition.

A 25-year-old man had a cut arm.

Both are now stable in hospital, NSW Police, said.

Yesterday, officers executed search warrants at homes on McCrae Place, Blackett, and Tarawa Street, Lethbridge Park.

Three men – one aged 18 and two aged 19 – have already been charged over their alleged roles in the incident.

They all remain before the courts.

Anybody with any information should contact Crimestoppers.