proving the front paragraphing the front and back. justin ray davis was killed five years ago in afghanistan's valley. >> i come here to meditate, reflect, bring flowers. it's my therapy. >> for family and friends now, who just want to check on those who served, it's a way to stay connected to those they lovenned ar and lost. >> they paid the sacrifice for everyone in this country. that's what's really important. >> at his web site preserve and honor.com, ricky has documented nearly 1,000 head stones in section 60 of arlington national cemetery. he said he would like to attend the naval academy and find more ways to serve the nation down the road. trace? >> trace: jennifer griffin is our national security correspondent. thank you.