When an Atlanta police narcotics squad killed 92-year-old Kathryn Johnston last November after bursting into her home with a bogus search warrant, police tried to excuse the killing by telling reporters a confidential informant had recently purchased drugs from Johnstons home. Thats when 24-year-old ALEXIS WHITE stepped up to prove himself a different sort of local hero. Police, he later said, were pressuring him to say he was the drug buyer. Fortunately, White stood his ground and snitched. White called 911 and told authorities he was being asked to lie. His truth-telling thwarted an attempted cover-up and helped send two dirty cops, Greg Junnier and J.R. Smith, to prison for manslaughter.