METRO VANCOUVER -- Police are now considering whether last week’s crash in Surrey that killed a family of five was caused by a pre-existing medical condition in the driver of the other vehicle, who has now died in hospital.

Surrey RCMP said Monday that Langley man Daniel Gore, 46, died Sunday, a week after he allegedly sped through a red light at 176th Street and 32nd Avenue, causing his Dodge Caravan to slam at high speed into the Toyota Corolla of the Sachdeva family.

Gore had initially been the sole survivor and remained in hospital, where he died after surgery for a brain condition that was discovered after the collision, said Cpl. Bert Paquet.

“We’ll be talking with medical staff and doctors, looking thoroughly at all the evidence, trying to establish if a medical condition was a contributing factor to the accident,” Paquet said.

The investigation into the cause of the April 28 crash is continuing.

Five members of Gurmit (Jolly) Sachdeva’s family, which runs the popular Surrey restaurant Sachdeva Sweets, were killed in the crash, including his wife Reena, five-year-old son Aanish, three-year-old daughter Jessica, sister Neelam Dhingra, and his mother, Vidya.

Over 1,000 members of the Sikh community attended last week’s memorial service.

Lawyer for the Gore family Richard Fowler said his clients were heartbroken over the loss.

“Obviously the family is devastated not only because of the passing of their dad but because of the circumstances in which it happened with five other people dying,” he said.

A tumour was discovered in Gore’s brain and it was removed on Friday. He did not recover from the surgery, Fowler said.

Gore was not known as a speedy driver, Fowler said. He had taken his son out for breakfast before heading to his job as a meat cutter that Sunday morning and had time to spare, Fowler said.

“From what I can gather, something else happened to explain the accident,” he said.

zmcknight@vancouversun.com

CLICK HERE FOR MORE PHOTOS RELATED TO THIS STORY