article_snippet: All are presumed dead.
article_snippet: While Military has not officially released any names, local sources and family members have told local news outlets about loved ones that were on the doomed copter.
article_snippet: Marine was also killed in the crash .
article_snippet: Debris: Pentagon officials say the 11 on board are presumed and that the mission is now one of search and recover.
article_snippet: It was certainly a high-impact crash,' said Eglin Fire Chief Mark Giuliano, and 'very, very, very dense fog' was complicating the response.
article_snippet: President Barack Obama has promised a thorough investigation into the cause, which is being led by the U.S. Army Combat Readiness Center out of Fort Rucker, Alabama.
highlights_snippet: Military have not yet revealed the cause of the crash .