Preston and Yap didn’t raise the dead but are, rather, using the dead to raise others. Rice University. Creating these arachnid marionettes was simple enough.

In Africa in the late 1970s, doctors noticed Ebola victims were experiencing signs of mental derangement before they died -- psychosis, depersonalization, even "zombie-like behavior," Preston wrote.

Preston hooked on 'zombie' pills - report. Preston went on the rampage in a hotel room because of dangerous sleeping pills, according to a report. By Dave West Published: 25 September 2006.