Three teens charged after alleged Sydney west murder

Paramedics and police tried unsuccessfully to resuscitate Ashley "Shazy" Mundy in his Tregear home in Sydney's west at 10.30pm on June 10.

The three teenagers, aged 16, 18 and 19 years, were at the Ellsworth Drive home with Mr Mundy when a fight allegedly broke out.

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Dylan Aldred, 18, was charged with murder, NSW Police said.

Dylan Thompson, 19, and a 16 year-old girl, who is too young to identify, were charged by NSW Police with assault occasioning actual bodily harm.

Police say an autopsy will be conducted to confirm the cause of Mr Mundy's death.

They are appealing for anyone with information to contact Mt Druitt police or crime stoppers on 1800 333 000.