HENNING, Tenn. (WTVF) — A massive manhunt is underway for an "extremely dangerous" man who escaped the West Tennessee State Penitentiary in Henning, Tennessee. The Tennessee Bureau of Investigation issued a Blue Alert for Curtis Ray Watson. He is a person of interest in the murder of Tennessee Department of Correction Administrator Debra Johnson on Wednesday. The 64-year-old was a 38-year veteran employee of the state of Tennessee. Johnson was found dead in her home, which is on penitentiary property. Officials said they didn't know of any specific contact she may have had with Watson. Watson escaped from jail on...