MEXICO CITY (AP) — A year later, many people say justice still has not been done in the case of soldiers killing as many as 15 suspected gang members after a confrontation at a grain warehouse in southern Mexico. In November, three soldiers were charged with aggravated homicide and four others, including a lieutenant, were charged with "actions improper to the public service" for failing to report the killings. Three women who survived the brief initial shootout and subsequent executions said they were tortured and threatened by state prosecutor's agents to support the army's version. The killings, known as the "Tlatlaya case" after the rural township where they occurred, were first brought to light by an Associated Press story in July revealing apparent contradictions in the army's account.