It's a loss of aircraft worth more than $200 million in what is becoming the most dramatic cost to the Pentagon of the military campaign against the group.
The U.S. military and Guam emergency response teams logged 120 hours and traversed 11,000 square nautical miles in an effort to find the missing sailor.
The boatswain’s mate, who grew up in Egypt, was awarded for his gutsy role in responding to a pirate attack on a commercial tanker in the Gulf of Aden.