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7 Terrifying Images of Serial Killer Taken Moments Before Her Killing Spree
5 Laughing & Joking Before Killing
This CCTV footage from a convenience store shows Dennehy laughing and joking around just moments before she would commit two attempted murders on random men whose only crime was that they were out walking their dogs. Fortunately, both victims survived and made a full recovery. The previous three were not so lucky.