Sir,
My prayers are with you and your family. Your son has honored all of us with his sacrifice and so have you and your family. We are thankful that he gave so graciously to us, the gift of freedom and protection. We will never forget what he did and why. It is not in vain.
I pray, that when I die and go home to my Father in heaven, I may walk up to your son and thank him properly.
Please take comfort in this promise:
“I have told you these things, so that in me you may have peace. In this world you will have trouble. But take heart! I have overcome the world.” – John 16:33 (NIV)