NPR : Hidden Museum Treasures: 'In Cold Blood' « http://www.npr.org/templates/story/story.php?storyId=1503950 | | Years ago , the tombstones of richard hickock and perry smith - the two killers portrayed in truman capote's in cold blood - mysteriously disappeared. now they have resurfaced at a museum that won't put them on display. harriet baskas reports on a kansas |