Varinder Kaur Badh, one of the survivors of last weekend's fatal hit-and-run in Surrey, has been told her parents died in the crash.

"She wouldn't believe us; she thought we were lying," her brother-in-law Shin Bir said. "She was just in total shock. And it went from shock to wishing it were her.

"Then it was rage. She wants to get the people responsible – to get her hands on them. Then she started grieving. She went through all the emotions possible."

Varinder's parents, Dilbag Badh and his wife Bakhshish, died last Saturday after a white 2006 Acura TL rear-ended the BMW they were riding in.

The collision sent their car into a skid, ultimately slamming it into a power pole.

Dilbag and Bakhshish were pronounced dead at the scene.

Varinder was sent to hospital with a broken jaw and pelvis and internal injuries.

A second daughter, Rupi, who was driving, received minor injures.

Varinder's older brother, Raminder, delivered the news of their parents' deaths shortly after his sister was moved out of the intensive care unit of Royal Columbian Hospital Tuesday.

"We had to tell her," Bir said. "There's more of the public on the floor she's on now. We'd rather we told her than someone else."

Varinder, 31, had to be put on a ventilator afterward, but is in stable condition, Bir says.

"She's been sleeping and grieving," he said. "She's got her older sister there – there's someone with her at all times."

Meanwhile, RCMP have confirmed that the driver of one car involved in the crash is assisting them with their investigation.

A black Chevrolet Camaro was on the road at the time of the incident when it was side-swiped by the Acura, which then lost control, rolling onto its roof.

The occupants of the Acura – who are described by police as young South Asian men – fled on foot.

The driver of the Camaro remained at the scene, and is now working with police in their investigation.

"He had the moral fortitude to stay behind and speak with us," said Surrey RCMP Sgt. Roger Morrow.

Police have said “speed was very much a contributing factor” in the crash, but have so far not been able to say whether it was a result of street racing.

Investigators have the name of the Acura's registered owner and have spoken with family members of the owner.

But attempts to track down and speak with that person directly have been unsuccessful, police said Thursday.

Anyone with information about the event is asked to contact Surrey RCMP at 604-599-0502 or Crime Stoppers at 1-800-222-TIPS.