He was born in 1922(ish) and the Haitian man is said to have been turned into a zombie by a combination of drugs. He been of interested both in folklore and for those that have an interest in how his condition came to light.
It’s believed he was drugged by puffer-fish venom and toad venom, it induced a coma that mimicked the appearance of death. The general belief is that it the poisoning was done by his brother when they had quarrelled over land.
He was then returned home, where he collapsed and seen as dead, he was then buried. The Bokor (sorcerer) then retrieved the man who was, in effect, buried alive. Once retrieved from his grave he was given a drug known as datura, which causes memory loss and hallucinations He was in a zombie-like compliant state and this meant he worked subserviently for two years on a sugar plantation. The owner of the plantation died and Narcisse was left to wander free, unaware of the death of his brother he slowly began to regain his senses as the drug left his system.
According to the interview with American Scientist after 18 years of being presumed dead he came back to his village, he managed to convince his sister and some of the villagers about who he was. After the hallucinogen worked it’s way out if his system the former was restored to his natural mental state. One of the things that is frustrating is that there are not enough notes, from Wade Davis who explored the case, to determine the actual neurotoxin used.