I have just finished the pilot of Hannibal. My question is: Is Hannibal the copycat? Did he call the killer of empathy or what? Was the killer a cannibal too, given that he returned the victim because of the liver cancer? Or is Hannibal the first killer?
Yes, Hannibal is the copycat. This becomes more explicit later in the series, as it becomes clear that Hannibal is
taking details of existing cases from his access to FBI agents, and is committing further copycat kills.
The cinematography shows that this is what's happening. However in S1E10, Buffet Froid, we see Hannibal doing this.