One Person Is In Federal Custody In Connection With An Attempted Arson At A Johnson City Business. The Explosion And Fire Resulted In Victory Orthotics And Prosthetics On Knob Creek Road Being Shut Down For A Few Hours. The Fire Department Was Called Out To The Business After The Fire Alarm Went Off. When Officials Arrived, The Sprinkler System Had Put Out Most Of The Fire. Johnson City Police And The FBI Stopped A Van Along State Of Franklin Road. The Case Is Now Being Handled By The FBI And The Bureau Of Alcohol Tobacco And Firearms. ATF Officials Will Be Bringing Charges Against The Suspect.