Hon To, 44, appeared to be winning her two-year battle with bone marrow cancer. Her 24-year-old daughter, Khan (Christine) Taing, who was helping nurse her back to health, was poised to reach her goal of entering the medical profession.

Returning home from prayers at their local temple late Saturday night, the two women were killed in a horrendous car crash, victims of a suspected drunk driver who police estimate was doing 200 km/h in his BMW.

A female friend travelling in the family’s Honda Odyssey driven by To’s husband, Pho Taing, was also pronounced dead at the scene on Finch Avenue at Tobermory Drive.

A fifth passenger, a woman in her 30s, was in critical condition in hospital and not expected to survive.

The 21-year-old driver of the BMW, who suffered non-life-threatening injuries, was arrested for impaired driving, police said yesterday.

They said they were stunned by the wreckage from the impact, which tore the minivan apart, throwing the three victims from the vehicle as it turned left off Finch going east.