Answer
Stabbing caused Gerard John Schaefer's demise, a notorious serial killer active during the 1970s in Florida, United States. On December 16th, 1995, fellow inmate Vincent Rivera murdered Schaefer by repeatedly stabbing him in the neck and chest with a sharpened spoon during an altercation in a prison recreation yard. Schaefer's reign of terror finally met its end within the confines of Glades Correctional Institution.