A Gray Man Has Been Ordered To Spend Time Behind Bars For Drug And Firearm Offenses. 41 Year Old David Anthony Mantey Was Convicted Of Possession With Intent To Distribute Crack Cocaine And Being A Felon In Possession Of A Firearm. In November 2013, Johnson City Police Discovered Marijuana And Cocaine Base On His Person. In March 2014, Members Of The First Judicial Drug Task Force Arranged To Purchase A Rifle From Mantey For 2-Thousand Dollars Along With Some Ammunition. Mantey Was Sentenced To 15 Years In Federal Prison.