The Survivors Club by Lisa Gardner

What the cover says:
The Survivors Club... that's what Jillian, Carol and Meg call it. They don't consider themselves to be victims. They are survivors who faced the blazing headlines and helped lead the investigation that caught Eddie Como, the man who changed their lives forever.
But now Eddie Como, the College Hill Rapist, has been murdered, shot down outside the courtroom moments before his trial was to begin. Jillian, Carol and Meg are openly ecstatic - but they are also the prime suspects in his murder.
Detective Roan Griffin has never had a case quite like this one. Could three ordinary women have been driven to do the unthinkable? Has someone in the Survivors Club become a killer? And then another woman is brutally attacked...

This is an excellent read, full of more twists and turns than you can shake a stick at. It does become ever so slightly slow and laboured in places, but that is easily forgiveable with such a clever idea.

8/10