Vancouver mayor says he made false drug claim about opponent based on photo  CTV NewsVancouver mayor called on to apologize to Chinese-speaking communities over drug accusation  CTV NewsGone in five minutes: After (very) brief appearance, Vancouver Mayor Ken Sim leaves more unanswered questions  Vancouver SunVancouver Mayor Ken Sim says comments about councillor Sean Orr came from an unverified photo  Global NewsUnverified photo from ‘member of public’ was source of Vancouver mayor’s drug slur  Toronto Star