COQUITLAM, B.C. - When 20-year-old Keziah Johnston of Coquitlam, B.C., died suddenly earlier this month, her sister Shiloh wrote an email to their mother about cherishing every moment.

Just 10 days later, 22-year-old Shiloh died after being struck by a car that plowed into a power pole where she was standing in Burnaby.

Family and friends of the two sisters are in shock that the inseparable pair died just days apart.

Their cousin Janica Lucas says the sisters were roommates, and Shiloh was devastated when Keziah died on Feb. 7 from undisclosed causes.

She says Shiloh took a week off to grieve and returned to work last week when she was struck by a car that skidded across two lanes of traffic.

A celebration of Keziah's life on Mar. 7, which Shiloh had been helping to plan, will now be a joint ceremony for the two sisters.