‘Are we dating the same guy?’: Women turn to Facebook to uncover cheating and violence

Experts say use of groups to warn others about dangerous men is indictment on governments' failure to keep women safe

Any info on Chris* please? Thanks." The words in a Facebook post, above three pictures of a man. In the comments, a woman replies: He was also posted a few days ago by someone."

Further down, a second woman replies: I'm shaking, I'm his fiancee."