Aileen Carol Wuornos was a female serial killer who was executed via lethal injection by the state of Florida on October 9, 2002. 

Four page handwritten letter dated September 21, 1999 to her childhood friend. Excellent content.
The letter is hand signed twice by Wuornos.
 
The top of the first page is hand signed, Aileen Wuornos. 
On the last page Wuornos has hand signed again at the close, Lee. 
Includes the original prison mailed envelope postmarked September 23, 1999.
Hand signed, Aileen Wuornos.