The women in question is a conservative politician in the US - Michelle Malkin. Regardless of her political views (I'm not in agreement with many of her views), nobody deserves the disgusting level of threats she got.
Essentially, she criticised a music album by a rapper called "The Game" (or something) and he got his followers to attack her - there have been so many disgusting rape and death threats from young men (and a couple of from women too.)
There's a summary here with many of the tweets:
twitchy.com/2012/12/13/fox-news-michelle-malkin-brace-for-mass-exodus-of-viewers-as-the-game-urges-boycott/
I can't believe so many people think it's okay to threaten people like that. A clear complete lack of respect for women as people.