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Locals have remembered how a couple would feed penniless customers for free at their burger restaurant before they were allegedly stabbed to death by their son.

Hoa Tek Chiem, 69, and Heang Kim Gau, 68, were found dead inside Buzzy Bee’s Burger House at Cambridge Park, in far west Sydney, about 9.40am on November 30.

Police arrested their son, 31-year-old Allan Chiem, about 12.30am the following day at a Canley Heights home before he was charged with two counts of murder.

Hundreds of locals gathered outside the couple’s restaurant during a candlelight vigil on the weekend to remember the generosity of the burger restaurant owners. 

‘I’ve seen people walk in there, and they absolutely have no money, and they will give them food,’ Brian Donovan told 7News.

Another said they ‘helped everyone in the community’ and that their deaths came as ‘a big shock’.

Other locals told the vigil they would ‘keep their memory going’.

Mr Chien and Ms Ga’s oldest son contacted police after he came across the grim discovery of his parents’ bodies at the venue.

Chiem will spend Christmas behind bars after he was refused bail in Parramatta Local Court on Sunday.

His matter was adjourned to Penrith Local Court in January.

Chien’s lawyer Mohamed Sakr  has asked corrective services to conduct a mental health assessment on his client before he faces court again in the new year.

He later confirmed that his client was filmed on the roof of the burger bar on Saturday.

‘Every accused deserves representation,’ Mr Sakr told Nine News.

The couple were well-known for their dedication to their business, which was open seven days a week.

It’s understood the couple were making plans to retire shortly before their deaths.

Former employees of Buzzy Bee’s Burger House said the couple were more like family than bosses.

Buzzy Bee’s Burger House was shut following the alleged attack as flowers and cards piled up outside it with messages paying tribute to the hard-working couple.

‘They dedicated themselves to this place. I pray that you both rest easy,’ one card read.

Owner of a nearby bakery Thanh Tran, recalled seeing the couple’s family while officers cordoned off the shop.

‘About 9.30am the eldest son visited the store and then the youngest came and the two hugged and cried for an hour,’ Mr Tran said.

‘Police got them milk crates to sit on and they hugged and sat down and cried, and they looked so sad, it was so sad.

‘And the police stood around and watched them (as they talked and cried).’