sentences:  The FBI nicknames the serial killer "The Poet" due to his use of Poe's lines with the victims.As the case focuses on an Internet network of pedophiles and one in particular (William Gladden), McEvoy is taken along on the operation to arrest Gladden, who is suspicious of the set-up and kills the FBI agent trying to arrest him, Gordon Thorson (Walling's ex-husband).McEvoy ends up killing Gladden himself while being held hostage.