She fatally shot an unarmed black man. Now she’s teaching other police officers how to ‘survive’ such incidents. She calls it “The Ferguson Effect.” Two years after she fatally shot an unarmed black man in Tulsa, Betty Jo Shelby, now a police officer in an adjacent county, is teaching a course on how to “survive such events” — legally, emotionally and physically. The course, as she explained it to a local ABC affiliate, equips officers to withstand the effect — named for the Missouri city convulsed by the 2014 shooting of a black teenager — “when a police officer is...