The resentencing before Zagel also could bring focus to the time Blagojevich has already spent in prison, Goodman said. In his four years at the minimum-security prison in Littleton, Colo., the ex-governor, known for his love of history, has kept busy by teaching Civil War history and other classes to fellow inmates, Goodman said. Blagojevich has also been singing in a prison band, although the group's lead guitar player was recently released, according to Goodman.