Investigator endures torture to build child - rape case . Gary Engels ' sole focus is Warren ##s ' FLDS ' . Sun Valley , Arizona , police beholden to him , he says . Engels says he wants to give sect 's young women more options .
Investigator endures hostility to build child-rape cases . Gary Engels ' sole focus is Warren Jeffs ' FLDS church . Colorado City , Arizona , police beholden to Jeffs , he says . Engels says he wants to give sect 's young women more options .