Many were drug addicts, working in the sex trade to fund their habits - part of a transient and disenfranchised community.
Professor of Criminology
According to Mr Rossmo, now a criminology professor at Texas university, the low social status of these women, many of whom were of aboriginal origin, contributed to the police's lack of concern.
"If these women had been from the affluent Westside of Vancouver, you can count on the fact that it would have been a very different response," he said.
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