Simplify the following text for a Grade 8 native English-speaking person.
Original: Davis traveled to Haiti in 1982 and , as a result of his investigations , claimed that a living person can be turned into a zombie by two special powders being entered into the blood stream ( usually via a wound ) .
Simplified: Davis went to Haiti in 1982 found out and wrote about how a living person can be turned into a zombie by two special powders being rubbed into a wound .