Former Egyptian President Hosni Mubarak waves to his supporters inside a cage in a courtroom at the police academy in Cairo April 13, 2013. The retrial of former Egyptian President Hosni Mubarak was aborted on Saturday when the presiding judge withdrew from the case and referred it to another court, causing an indefinite delay that sparked anger in the courtroom. REUTERS/Stringer (EGYPT - Tags: POLITICS CRIME LAW)