SIOUX FALLS, S.D. (KELO) -- Three prisoners were indicted this week and accused of committing crimes inside the state penitentiary. A closer look at court documents raises questions about who is being held in South Dakota's prisons. It turns out they're not always from South Dakota, and the state isn't required to let you know about them. Tyler Larvie and Seth Peplinski are serving time for South Dakota crimes, but Kelly Irby is not. In fact, t…