Fourth person charged over stabbing death of Sydney man during home invasion

A fourth person has been charged with murder over the alleged stabbing death of a man during a home invasion in Sydney's west.

Kevin Kourtis, 39, was attacked inside his Langton Street home, in Riverstone, on Sunday May 24.

Witnesses told police five people allegedly ambushed Mr Kourtis inside the house just after midnight, stabbed him multiple times and then fled.

Two women, aged 34 and 43, were also at the address when the alleged attack occurred. The 34-year-old suffered minor injuries.

Following investigations, police arrested a 20-year-old St Marys man last night.

He's been charged with murder and will face Parramatta Local Court today.

Three boys – two aged 17 and one aged 16 – were previously charged with murder and remain before the courts.

Last week, images of a car seen in the area at the time were released by police.

The silver 2008 model Subaru Forrester fits the description of a vehicle found burned out at Boronia Park in North St Marys.