A Stabbing Over The Weekend In Kingsport Has Landed A City Man Behind Bars. 47 Year Old Frank Copas Is Charged With Attempted Second Degree Murder In The Stabbing Of Keith Chase At A Home On Vincent Lane Saturday Morning. According To The Sullivan County Sheriff’s Office, Chase Had To Undergo Emergency Surgery At A Local Hospital. Authorities Believe The Two Men Had Been Drinking When An Altercation Occurred. Copas Remains Behind Bars At The Sullivan County Correctional Facility And Is Expected To Be Arraigned Sometime Today. The Investigation Is Still Continuing.