As Mexico marks the 10 month anniversary of the enforced disappearance of the 43 Ayotzinapa students, evidence of exactly what occurred is still illusive. Last week the semi-official National Human Rights Commission slammed the official investigation as riddled with serious flaws and omissions. Family members of the missing students and human rights advocates demand that the role of the military be investigated, which thus far authorities have refused to do. Clayton Conn reports from Mexico City. teleSUR