Criminal Minds: Suspect Behavior Episode 1.06 Devotion

Our team is called to track down a serial killer who is kidnapping random men then killing them by hanging. The crime scene indicates that there may have been someone with the unsub at the time of the murder. The killings happened first in Omaha then in Illinois indicating that our unsub is making his way towards someone or something and it doesn't look like his killings are about to stop. A clerk at a local gas station informs our team that a nervous looking guy was asking about cheap motels along the interstate. That leads our team a trashed motel room with the drapes duct-taped and blue candle wax on the floor. Our unsub has a female with him and we think she may be kept against her will. A third victim is found shortly thereafter and it's confirmed that he was also a registered guest at the motel. Police have a 911 call made by our victim who was apparently lured by our unsub into thinking that he had car problems. The call reveals that right before our victim was hung he witnessed something shocking which is eventually revealed to be a dead corpse. The dead corpse turns out to be our unsub's sister. She committed suicide after their father abandoned the two of them and their letters went unanswered. Our unsub was making his way to DC to ultimately kill their father, now a politician, and along the way killing surrogate fathers. He kept his sister's corpse with him and in his delusion made her watch all his killings.