Simplify the following text for a Grade 9 native English-speaking person.
Original: In 1997 R. J. Rummel wrote a book called Statistics of Democide : Genocide and Mass Murder Since 1900 , In Chapter 8 called Statistics Of Pakistan 's Democide - Estimates , Calculations , And Sources he says : In East Pakistan ( now Bangladesh ) ( General Agha Mohammed Yahya Khan and his top generals ) also planned to murder its Bengali intellectual , cultural , and political elite .
Simplified: In October 1997 R. J. Rummel published a book , which is available on the web , titled Statistics of Democide : Genocide and Mass Murder Since 1900 . In Chapter 8 , Statistics Of Pakistan 's Democide - Estimates , Calculations , And Sources , he states :