Sydney man Jacky Feng arrested, accused of carrying out a deadly attack inside his family home in Rosemeadow. Picture: 7 News / TNV

Sydney man Jacky Feng arrested, accused of carrying out a deadly attack inside his family home in Rosemeadow. Picture: 7 News / TNV

A man charged over the alleged killing of his parents and brother in Sydney’s south west is due to face court on Monday.

Jacky Amazing Feng, 32, has been charged with three counts of murder and one count of attempted murder following the alleged hammer attack at a home in Rosemeadow in the early hours of Sunday.

Emergency services were called to the property just after 1.30am, where Feng’s 65-year-old mother and 64-year-old father were found with critical injuries. Both later died, while his 25-year-old brother was found deceased at the scene.

Police pictured at the scene on Juliet Close in Rosemeadow on Monday. Picture: Damian Shaw

Police pictured at the scene on Juliet Close in Rosemeadow on Monday. Picture: Damian Shaw

A body being taken from the crime scene. Picture: NewsWire / Damian Shaw

A body being taken from the crime scene. Picture: NewsWire / Damian Shaw

Another brother, aged 30, was also at the home and was treated for injuries.

Police will allege Feng left the scene before returning a short time later, where he was arrested.

He was refused bail and is set to appear before Campbelltown Local Court on Monday.

On Monday morning, the crime scene remained with police tape cordoning off the area as forensics continued to walk in and out of the home.

Police officers stepped on the tape to allow neighbours’ cars to come in and out of the crime scene to access their houses.

Parents held their children’s hands tightly as they guided them past the crime scene and toward a nearby school.

Police pictured at the scene on Juliet Close in Rosemeadow. Picture: Damian Shaw

Police pictured at the scene on Juliet Close in Rosemeadow. Picture: Damian Shaw

A neighbour, who remained in the dark about the brutal incident, was shocked to find out what had happened just doors down while he slept.

“Jesus Christ! I need to move,” he said.

“There are random DV incidents where the cops are called every three months, but nothing to this extent,” he said.