More than two years after minor sisters, allegedly victims of sexual assault, were found dead in their home in Kerala 52 days apart, a special court has acquitted three accused in the case. Delivering its verdict on Friday, the court said police had failed to establish the crime with evidence. The sisters' mother has since alleged lapses in the police probe and that the accused had links to Left parties. "The accused have been shielded by Left Democratic Front (LDF) because they used to work for the Left locally," she told media today after the acquittal was announced.