A Kingsport Police Officer Who Shot And Killed A Pit bull Has Been Cleared Of Any Wrongdoing. A Sullivan County Grand Jury Decided To Take No Action Against Officer Darrell Johnson After Hearing The Results Of A Tennessee Bureau Of Investigation report. Officer Johnson Shot The Pit Bull June 21st While Chasing Two Suspects. The Grand Jury Determined The Officer’s Actions Were Reasonable Under The Circumstances And No Criminal Charges Were Necessary.