They All Had A Plan Book by Michele Leathers

Cory has been following her for months. The longer this goes on, the deeper his obsession grows. Experience has taught him that catching this girl won’t be simple. She is too smart, too cunning, and too slippery for an ordinary plan to work. He’ll have to be methodical, to slowly gain her trust. Becoming a part of her life will require him to lie, to deceive, and to make promises he can’t keep. Cory thinks he knows what he’s doing. He thinks he’s in control, but it’s not until he has blood on his hands that he realizes he has gone too far.