the occupant. he accepted a plea bargain and was sentenced to 20 years. while at wabash, however, he received an additional four-years sentence for possession of a dangerous device, a seven-inch-long shank. >> that's a baby. that's a baby. before that, i always tried to make mine at least 10 inches long. that way i had plenty of handle room and plenty of blade. >> siverly's history has resulted in him being housed in the highly restricted secured confinement unit. while he doesn't like it, he does understand it. >> from their standpoint, how can you have somebody who keeps repeatedly getting caught making mass quantities of knives in population and keep population safe? even if that person's not stabbing people, he's making the knives that are stabbing people. >> with few possessions and little if any contact with other inmates, siverly has refocused his energy from weapons to art.