everything he had to say about bin laden was summed up on facebook. it's a great day. that sob is dead. the next morning he placed fresh flowers at his son's memorial at his son's hometown city hall. >> the concern was not whether or not one day bin laden would be out of the picture, that some day people here might forget the sacrifices people like his son had to make. >> reporter: perhaps worse, spann worries americans may forget to be vigilant. >> to say the fight's over, throw up our hands and have a big party. that's not the way we feel because mike is still gone. there's still an empty seat at the table. >> reporter: david mattingly, cnn, winfield, alabama. >> with the killing of osama bin laden, you can now cross him off the fbi's most wanted list. christine romans looks at the