. >> kenneth hearst was a prolific letter writer. his sister made the writings available so others can learn. >> it's putting life in perspective. you shouldn't forget what these people did. >> you don't worry if the letters aren't too numerous. >> there are references to the danger he and others live with every day. >> they're killing many more enemy than ever before, we're also losing our share of men. i would be a liar to claim the prospect of going into this sort of combat did not frighten me. he was killed in 1967, killed with 87 men in his squad. only 12 survived. laura anthony, abc7 news. >>> a memorial day vigil is set to get underway on this hillside. it's been nine years since a group of residents began putting crosses on the hill for each u.s. soldier killed. some criticized it calling it a political statement. that controversy went away. now, families go to personalize the process with names and pictures of the loved ones. >> families come from around the country and bring their photographs and have very much a movement f