I'm emailing you a bunch of articles I found searching LexisNexis with this search strategy:
Major US and world publications, News Wire Services
"prison for women"
limited to January 1 1991-December 31 1991
Once I got results, I added the word "suicide" (without the quotes) to narrow them down some more. That got me 37 stories (many of them duplicates) from seven different sources in Canada and the United States.