On June 2, 2012, a three-judge panel sentenced Mubarak to life in prison for being an accessory to murder in the killing of hundreds of unarmed protesters in early 2011. The former president and his sons were acquitted of corruption. However, the panel cleared several of Mubaraks security officials who were responsible for ordering the attacks on protesters. Thousands of demonstrators poured into the streets of Cairo after the verdict was announced to protest what they considered a weak verdict. Mubarak appealed, and in January 2013 the Court of Cassation ordered a retrial. In August 2013, he was transferred from prison to a military hospital in Cairo and has remained there under house arrest.