(KLZA)-- Tecumseh State correction Institution inmate,  30-year-old James Pilcher has been sentenced in Johnson County District court for an October 25, 2018 assault with a weapon.

A news release from Johnson County  Attorney Rick Smith said during the incident, a staff member was retrieving an item from Pilcher's cell, when Pilcher reached out through the hatch in is cell door and swung a makeshift knie at the staff member, striking him in the abdomen and causing a superficial puncture wound.

District Judge Rick Schreiner added 10 to 20 years to Pilcher's current prison sentence, which was prevsiously set to end in 2022.

Pilcher is servic ea six-year sentence for assault convictions out of Lancaster County.