First Cut (Book One in The Family or Foe Saga) by J. T. Bishop

A serial killer with a strange psychic connection stole everything from a former detective. But when he lines up his pieces for a rematch, he may be surprised at how well she’s learned to play the game.
Can two detectives and a former cop turn the tables to stop a madman before they become his next victims?
Book one in a four-book saga.