The Vision by Dean Koontz

This was better than the previous version, The Face of Fear.  Here the clarivoyant is Mary Bergen, who works with police to help them solve cases.  She is accompanied by her brother and her husband, who come increasingly into conflict as to how to help her handle the emotional fallout of her work.  But now she is pursuing a serial killer and her visions have a new intensity, she is experiencing the pain of the victims and something seems to be pursuing her, something to do with the trauma buried in her past when she was sexually assaulted by the family gardener.  Gripping and much better in terms of focus and pacing, but for me the red herring was too obvious.