Thousands of people marched through the streets of Mexico City on Saturday calling for justice and for answers after the abduction and feared massacre of 43 student teachers.<br /><br /> On Saturday, officials announced that at least one of the students had been identified from charred remains found near a rubbish dump. Family members named him as Alexander Mora.<br /><br /> Felipe De la Cruz, the father of another missing student and spokesperson for the families told the crowds: “We are not crying for Alexander, on the contrary, we know that his fall will result in the flower of revolution for a deep change in our country. That no matter where he is he should know that the fathers of the families are not going to rest until there is justice.”<br /><br /> The students went missing in the town of Iguala in September after they were fired on and detained by police while travelling home from a demonstration. The Mexican government says police handed them over to a drug gang on the orders of the local mayor who wanted to stop them disrupting a speech given by his wife. The couple are amongst more than 70 people who have since been arrested.<br /><br /> Prosecutors say the gang killed them before burning their bodies at a rubbish dump near the town of Cocula and scatterering their ashes in a river.<br /><br /> An Argentine team of forensic experts working on behalf of the relatives.