Twilight's Children Series by Amanda Stevens

Together, can they find the Twilight Killer... Before he finds them?Special Agent Ethan Barrow's father was the most brilliant FBI profiler of all time. Now he's in a psychiatric ward, committed for the very crimes he cased. But new evidence leads Ethan straight to Detective Adaline Kinsella--the woman he had a past with ten years earlier. Addie can trust evidence...even if she can't trust the emotions Ethan elicits. Can she now put the past aside to bring the real Twilight Killer to justice?