Man killed in self-defence in northwest Calgary was landlord to missing senior  CTV NewsCalgary woman’s act of self-defence prompts another victim to come forward  Global NewsPolice say woman who killed attacker with knife was acting in self-defence  Calgary HeraldMan killed in self-defence in Edgemont had history of violent allegations, records show  CTV NewsCalgary realtors urged to prioritize safety after woman attacked at fake property showing  CBC