>> church members were told to learn a new language. >> you had to say something in russian before you could get anything to eat. little old ladies coming up, older people, elderly people, you know, they couldn't do it. they couldn't memorize anything and they would turn them away. >> yet unknown to parks, unknown to gosney or almost anyone outside the inner circle, jones was already preparing for their death. this is a memo written to jones by the peoples temple doctor six months before the mass suicide. it reads in part -- >> cyanide is one of the most rapidly acting poisons. i would like to give about two grams to a large pig to see how effective our batch is. >> the test apparently was never carried out, but that's not the point. while in guyana we made a startling discovery. the church had been buying cyanide long before most of the members arrived here in jonestown. cnn has learned that for at least two years the church was buying a quarter pound of the