The Major Crime Unit is looking into a serious assault that took place at the Saint John Regional Correctional Centre last Tuesday.
A 33 year old inmate from Fredericton, Thomas Jack is at the Regional Hospital in critical condition.
His mother says Jack suffered a fractured skull with swelling to his brain and she fears there might be permanent damage.
His mother says Jack suffered a fractured skull with swelling to his brain and she fears there might be permanent damage.
The suspect is a 35 year old inmate from the Saint John area.
Police say charges are anticipated.