In 1986, when he was 18 year old, Troy Michael Kell was sentenced to life in prison for murder of James Cotton Kelly in what became known as the “Show and Tell Murder”. He was transferred from Nevada to the Utah State Prison in Gunnison where, on July 6, 1994 he stabbed inmate Lonnie Blackmon to death. The stabbing was filmed by the prison security CCTV camera.

During the attack, Troy Kell stabbed Lonnie Blackmon a total of 67 times. He was helped by inmate Eric Daniels who held Lonnie Blackmon down. For the stabbing, Troy Kell was sentenced to death by firing squad but remains alive on death row after a number of appeals put the sentence off.

The CCTV video of the stabbing was used in a 2002 HBO/Blowback Productions documentary titled “Gladiator Days: Anatomy of a Prison Murder”. Segment from that documentary which shows the actual stabbing is in the video below.

Props to Best Gore member xkhanx for the video: