The New City man whose 1-year-old twins died in an overheated car while he was at work is still facing second-degree manslaughter and other charges. 39 year-old Juan Rodriguez was in court in the Bronx yesterday, and learned that no grand jury action has been taken on the case yet. His attorneys have been seeking to have the case dismissed. Rodriguez has claimed he thought he had dropped the twins off at day care before going to work at the Bronx VA hospital.