dr. gordon: thank you for asking for clarification. about 400 who entered andersonville about a third of them are going to die. i've had a hard time calculating exactly how many died. the numbers are wildly -- i would say between 90-100 will die in prison. like wallace woodford, men will die when they get home. some will die within the months or even a year or two after the war ended. their casualty rate, i don't know that it is that different than most other prisoners of war. many of the men, when the present can't at andersonville begins -- when the prison camp at andersonville begins to end, some will end up at charleston or florence. >> how did they get from connecticut to antietam? dr. gordon: it is a convoluted journey. they are going to be put on a boat first. they go to new york. they are on trains and then they march. they march on the way to antietam. four men who had never been in the military, some of them we would call white-collar. a lot of them worked outside. for any soldiers, the kind of marching, it was extremely diff

you mentioned that gordon wrote someone moore's -- wrote some memoirs. did he comment about what he perceived happen? dr. cushman: absolutely. he did indeed. it is more interesting than that -- his reminiscence has come out in 1903 and he definitely talks about what happened but the two men appeared in new york in 1894 on the same stage and gordon was giving an address and he says now i want to shake the hand of the man who offered as such an magnanimous gesture and introduces chamberlain. clearly, they had figured they have something here. they did it in a public performance and yes, absolutely. >> no other counts from any of the other participants? dr. cushman: what william marvel would argue is that -- his line is a hard one. all the accounts we have come from an chamberlain led the salute came from soldiers in chamberlain's own unit except it is not quite true. i did find one by a man named william h powell who wrote a history of the fifth corps and he was not in any unit commanded by chamberlain and he said chamberlain ordered the salute as well. thank you. >> john from chicago, illinois. what is t

gordon was at the home when bobbi kristina was found. >> 21-year-old female in the bathtub face down, pds en route. >> reporter: later behaving erratically and breaking down on an interview on "the dr>> reporter: in one of the book's most explosive claims halperin says he is not convinced what happened in january was an accident at all and says he believes there's evidence suggesting foul play. >> there's no doubt the circumstances are highly suspicious because she was found in a bathtub of cold water. there is a criminal investigation going on as we speak. >> reporter: now he says despite conflicting reports, bobbi kristina's prognosis is not good and that her father, bobby brown, is the main one holding out hope. >> he's been at her bedside almost 24/7 since the accident happened, and he's believing a medical miracle is possible. >> the roswell, georgia, police confirm the criminal investigation is ongoing adding no decision has been made to prosecute anyone at this point. we reached out to nick gordon and bobby brown for comment but did not hear back. it's such a sad story. >> such a sad story, mara, thank you very much. >>> we told you in "pop news" about brad pitt's new deal w