A former Atlanta police officer says he helped cover up a botched drug raid under pressure from fellow officers. Arthur Tesler testified today he was told to memorize a story to cover up events of November 2006 that led to police raiding the home of 92-year-old Kathryn Johnston and shooting her to death. Tesler says the story was that he witnessed an informant buying drugs at Johnston's home. But during often tearful testimony, Tesler said he eventually decided to cooperate with federal investigators because he "couldn't take it anymore."
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