here is what it says. jack, you are my best friend. we had fun together. i will miss you. i will talk to you in my prayers. i love you, jack. love, john. how do you talk to kids? is it helpful for them to be able to write or draw pictures, especially the young ones. >> absolutely. realize at every age and stage children will need to express themselves differently. it might be in the form of a letter. it might be in the form of volunteering to raise money. it might be in the form of providing support and bringing awareness to gun control issues, to other issues, writing letters to your state legislator. there are a variety of ways. i think altruism is a protective factor in preventing ptsd and we see there are certain things people can do in the aftermath so they can bolster up those support systems. one of them is giving back to the community. another one is having flexible coping mechanisms so that a child may express himself differently. one child may withdraw.