ok it does sound like a liver shot blood will be dark you need to keep looking she is there yes you may have been jumping her if it takes getting down on hands and kness do so make sure you look in all thickets you said she went in swampy area they can travel 150 yards from where you shot her make sure you all stay in a line mave carefully and slowly big pools of blood indicate laying down is it only on one side or both I ope you find your deer keep searching check blood again what color is it is it dark did it look like anything was in it to indicate stomache too check let me know