The son of Sydney mum Min Sook Moon has expressed his family's grief after the man charged with her murder faced court for the first time.
Min Sook Moon, 49, was reported missing by family members earlier this month after she failed make contact with them.
Ms Moon was last seen walking along Rawson St in Epping on the afternoon of March 8, with a police strike force determining she entered a vehicle in a car park on the same street that day.
Chulsoo Jung, 55, attended Eastwood Police Station on Saturday morning and was arrested.
Officers went to a park at Silverwater and found a body on Saturday afternoon, NSW Police said.
The body is yet to be formally identified and a crime scene has been established at the park, while forensic analysis is also taking place.
Her son, Adam, said the family was "devastated" and "still coming to terms" with her loss.
"We have all been deeply affected by this tragedy, and it is very hard to know that she will never be coming home after being so cruelly taken from us," he said in a statement on Sunday.
"On behalf of our family, we want to thank the community for sharing our appeals for information, and also thank those who provided information to the police.
"As we continue to process this news, our family has requested privacy at this time."
Jung was charged with murder and refused bail to face Parramatta Bail Court on Sunday. He did not apply for bail and it was formally refused.
It means Jung, who requires a Korean interpreter, will remain behind bars for at least the next six weeks before facing Hornsby Local Court on May 5.