Jon Ostrower, Aerospace & Boeing beat reporter for The Wall Street Journal, is stating that the last ping from the missing aircraft to satellites was 5 hours after it went missing and was from over water.
He's holding firm to this claim. He says he does not know the exact location, but as that ping includes GPS, speed and alt data, he says there will be those that do know.
US is sending a ship to the Indian Ocean to search a very specific spot.