Trail of a Serial Killer

"For 10 years, FBI agent Jason Enola has been obsessed with capturing a particularly clever serial killer who surrounds his victims with a series of notes, the only clues to his identity. For the past four years, the killer hadn't murdered anyone, but then the killings start up again, and Enola and his partner Brad Abraham resume their investigation. This time, they find assistance from psychiatrist Alyce Robertson after the murderer begins calling her."