Idaho’s prison system is overcrowded, which leads to men being housed out of state at private facilities in Arizona. In this file image, handcuffs are hanging in a prison. | Sarah A. Miller, Idaho Statesman BOISE (Idaho Statesman) — An Idaho man serving three life sentences for the killing of three people in the Boise Foothills nearly a decade ago died in a private prison where hundreds of men convicted in Idaho are housed out of state. Adam Dee…