Joanne Chesimard is wanted for escaping from prison in Clinton, New Jersey, while serving a life sentence for murder.
In 1977, Chesimard was found guilty of first degree murder, assault and battery of a police officer, assault with a dangerous weapon, assault with intent to kill, illegal possession of a weapon, and armed robbery. She was sentenced to life in prison. On November 2, 1979, Chesimard escaped from prison and lived underground before being located in Cuba in 1984. She is thought to currently still be living in Cuba.
http://www.fbi.gov/wanted/wanted_terrorists/joanne-deborah-chesimard