The U.N. High Commissioner for Human Rights says this violated international law . Humberto Leal González , a Mexican citizen , was not granted consular protection . Leal , who was convicted for the 1994 rape and murder of a 16-year-old girl , was executed Thursday evening by lethal injection in Texas . The U.S. Supreme Court denied a stay of execution . Leal was not informed of his right to leave the Mexican consulate upon his arrest .
The U.N. High Commissioner for Human Rights says this violated international law . Humberto Leal González , a Mexican citizen , was not granted consular protection . The U.S. Supreme Court denied a stay of execution . Leal was not informed of his right to leave the Mexican consulate upon his arrest .