The violence was the worst in the area, Chiapas State, since Indian rebels began an uprising there four years ago.
A mutliparty commission is handling peace negotiations with the Indian rebels in Chiapas.
At the time, British newspapers had printed various accounts about English women and girls being raped by the Indian rebels.
The incidents of rape committed by Indian rebels against European women and girls appalled the British public.
"But I am an Indian rebel with a cause."
The Indian rebels have been pretty good at avoiding military patrols in the past, and Valdez recruited most of his personnel from their ranks.
He was killed by Indian rebels during the Taos Revolt.
In the midst of the fighting and resistance the Indian rebels became entrenched on a hill.
Under that agreement, Indian rebels were not required to surrender or seek amnesty, as is being demanded of contras.
It was the bloodiest violence in the southern state of Chiapas since Indian rebels launched an uprising there nearly four years ago.