a trico specimen, bezoar, a human hairball on display, in the shape of a stomach. this was surgically removed from a girl who was 12 years old. who underwent recovery and lived a happy, healthy life. you can see it is formed in the shape of the stomach area -- of the stomach. of aa section of a lung soldier who died of the influenza pandemic that killed people. this is a few of the pathological specimens on display. we are now at an exhibit on forensic verification and the science that is involved in determining a positive scientific examination on missing war dead. we start with the story of colonel charles sharp. colonel sharp was a pilot in vietnam. he was shot down rid his body was not recovered. but in the 1990's, a small piece of bone was found at a crash site. while it might have been colonel no positivere is occasion. but then eventually dna from the bone was matched with dna from love letters that colonel sharp had licked the envelope bob and sent to his wife during the war that dna waser and a positive match. that helps tell the story about ae role dna pl