there is no way to kill yourself that way. when a person ingests arsenic, the poison attaches itself to the hair follicles. as the hair grows, the poison residue remains on the hair shaft and becomes a permanent record. so scientists cut nancy s hair into 7-millimeter pieces. each piece corresponded to a two-week period. each piece was placed in a separate vial and then exposed to radiation in a nuclear reactor. the sample can be analyzed as is in most cases, just simply weighed into a radiation vial. most other methods require dissolution of the sample. when scientists examine the hair with gamma ray spectrophotometry, they discovered a startling piece of
reactor. the sample can be analyzed as is in most cases, just simply weighed into a radiation vial. most other methods require dissolution of the sample. when scientists examine the hair with gamma ray spectrophotometry, they discovered a startling piece of information. nancy had ingested small doses of arsenic every week starting four months before her death. the dose of arsenic increased four weeks before her death. the highest amount of arsenic was in nancy s system two weeks before her death. her levels were anywhere from 4 to 100 times what normal levels were, so, it was a very significant level and it was lethal. the forensic tests showed the poisoning started when nancy s husband, richard, moved back home after the separation. but richard wasn t the only person in nancy s life who had both motive and access. nancy s handwritten diary
it s too painful. it s too drawn out. it s a horrible way to die. and you re very aware and very conscious until the very end of it. there is no way to kill yourself that way. when a person ingests arsenic, the poison attaches itself to the hair follicles. as the hair grows, the poison residue remains on the hair shaft and becomes a permanent record. so scientists cut nancy s hair into 7-millimeter pieces. each piece corresponded to a two-week period. each piece was placed in a separate vial and then exposed to radiation in a nuclear reactor. the sample can be analyzed as is in most cases, just simply weighed into a radiation vial. most other methods require dissolution of the sample. when scientists examine the hair with gamma ray spectrophotometry, they discovered a startling piece of