I've read a number of stories like this over many years. The basic outline is the same. A woman meets a man who committed some unspeakably vile crime in his past, but now he appears to be fully reformed and a model citizen. She falls in love with him and marries him. Then he commits another unspeakably vile crime.<p>That's just my observation. I don't know what, if any, conclusions can be drawn from it.