Amy feels guilty as she continues to help the detectives, uncertain of where her nursing loyalties are. She prints off copies of the Cerner patient data, reviewing them and giving them to the detectives. The longer she does this, the more suspicious she feels and the more her stress manifests in physical symptoms. One night, while self-dispensing a Tylenol for a headache, she realizes that the Tylenol is kept in the same drawer as the digoxin. When the Pyxis door opens, the digoxin is accessible. Armed with this knowledge, she identifies a pattern that links Charlie ordering Tylenol to digoxin-related overdoses. She studies his other drug orders and realizes that he was creating his own drug cocktails for patients.

Amy shares her discovery with the detectives. The next night, Amy studies Charlie’s Cerner data output and realizes that he was “hunting” for victims using the digital logs (205). She has another nightmare about Charlie’s drug dispensing. The next time she meets with the detectives, she provides background on the Cerner patient system and explains how Charlie frequently looked up patients that hadn’t been assigned to him, which contains proof that Charlie studied Reverend Gall’s data before his death.