On 12 May 2011, aged 91, Demjanjuk was convicted as an accessory to the murder of 27,900 Jews at Sobibor killing center and sentenced to five years in prison with two years already served. Presiding Judge Ralph Alt ordered Demjanjuk released from custody pending his appeal, as he did not appear to pose a flight-risk. This was the first time someone has been convicted solely on the basis of serving as a camp guard, with no evidence of being involved in the death of any specific inmate. His release pending appeal was protested by some, including Efraim Zuroff of the Simon Wiesenthal Center.