It was an United flight from Mexico City to IAD and I left it right under the seat next to the window, I know I didn't left if because I even checked if I wasn't missing anything and I didn't see anything.
I already went to IAD to the lost and found office and checked the boxes where there was everything : iPads, Kindles, cameras, laptops everything but my camera.
I seriously don't know where is it now. Has anyone had the same kind of experience?