3rd victim of Calgary basement suite fire dies

A third person who was injured in a northwest Calgary house fire this week has died.

Tiffany Cox, 19, died in an Edmonton hospital Thursday where she had been receiving hyperbaric oxygen treatment for smoke inhalation, CBC News has learned.

Cox was one of four unconscious people rescued from a smoked-filled basement rental suite in the 500 block of 33rd Street N.W. early Monday morning.

Colleen Mantei, 23, and Jonathan St. Pierre, 19, died earlier this week in a Calgary hospital where they were being treated.

The only survivor of the fire, another woman, remains in an Edmonton hospital.

A public service will be held for St. Pierre on Saturday at Calgary's Bonavista Evangelical Missionary Church, 1509 Lake Ontario Dr. S.E., at 1 p.m.

The blaze was caused by a space heater that started a nearby sofa on fire and the only smoke detector in suite was not working, said fire investigators.

There has also been some speculation that security bars on the basement windows trapped the four inside the apartment, but officials have not confirmed whether the bars were a factor.