(CNN) -- It was only natural for Kristin Choe to begin drawing. Even at age 3, she expressed herself through art.
And that's exactly what she did in the months after her mother, Navy Lt. Florence Bacong Choe, 35, was killed by an Afghan army soldier in March 2009.
The little girl took out crayons and a sheet of paper and began coloring in some green grass. Her father, Navy Lt. Cmdr. Chong "Jay" Choe, thought Kristin was drawing the family's home.
But the final sketch proved to be much more: a symbol of their new life and a little girl's loving memory of her mom. Dad didn't know what to make of the drawing. It left him speechless.
Yet he kept the picture as a reminder of everything that changed the moment Florence was killed.