A police officer stands guard outside a prison where Frenchwoman Florence Cassez had been held in Mexico City, Wednesday, Jan. 23, 2013. A Mexican Supreme Court panel voted Wednesday to release Cassez, a Frenchwoman who says she was unjustly sentenced to 60 years in prison for kidnapping and whose case became a cause celebre in France, straining relations between the two countries. A police convoy with sirens flashing escorted a white sports utility vehicle out of the prison where Cassez had been held later Wednesday, presumably carrying her to the Mexico City airport. Relatives of kidnap victims angrily shouted &quot;Killer!&quot; as the vehicle pulled away. (AP Photo/Andres Leighton)