Amy Discovers Cullen May Have Obtained Drugs by Bypassing Pyxis
The Good Nurse: A True Story of Medicine, Madness, and MurderAmy Loughren’s discovery that Charles Cullen may have obtained drugs by bypassing Pyxis changed how investigators could read the hospital’s records. Cullen’s pattern of canceled drug orders had looked like a possible route to unrecorded medication; Amy recognized that he might not have needed the dispensing system at all. Her conclusion came from reinterpreting an ordinary feature of his routine: his place near the doors, where pharmacy deliveries arrived.
The limits of the Pyxis record
At Somerset Medical Center, detectives sought Cullen’s complete Pyxis activity, despite being told that the system retained data for only thirty days. The recovered reports gave them time-stamped lines showing which drugs he ordered, in what units, and for which patients. Yet the record did not show Cullen withdrawing digoxin on the evening before Reverend Florian Gall’s overdose. The spreadsheet appeared promising, but by itself it did not disclose how a drug might have reached a patient outside a recorded order.
Amy supplied a necessary explanation of another hospital record system. Cerner PowerChart tracked patient information, including notes, allergies, code status, and laboratory values; it also left a time-stamped record of chart access. Investigators Tim Braun and Danny Baldwin had not known about the data. Amy explained that the records could establish a patient’s clinical timeline and show when Cullen had looked at a chart, potentially placing medication activity alongside changes in a patient’s condition. Read together, Cerner and Pyxis offered a fuller picture than either system alone, but they still recorded different parts of the process.
Canceled orders and an incomplete explanation
Amy first showed investigators how Pyxis cancellations worked after she accidentally entered a wrong drug order during an exhausting stretch of nursing shifts and canceled it as the drawer opened. She demonstrated that the screen could show a canceled order even though the drawer had opened. Reviewing Cullen’s records, she found at least twenty-seven canceled digoxin requests between his arrival at Somerset and June 27, including eight in February. No other nurse on the unit had ordered even a fifth as many.
The pattern suggested a way Cullen could have removed medication without acknowledging it in the record, but it remained circumstantial. Investigators could not prove that he had taken drugs through canceled orders, and a camera aimed at Pyxis offered little prospect of catching him if the recorded requests had stopped. Cullen’s digoxin requests and cancellations ended four days after Reverend Gall’s death, while unexplained laboratory results continued. Amy was left confronting two possibilities: Cullen had another way to obtain drugs, or she was wrongly turning evidence against a friend.
Rereading the routine
The alternative emerged as Amy revisited Cullen’s familiar work habits. In a self-hypnotic exercise she used to confront painful memories, she placed herself back on the cardiac care unit and reconsidered the spot where Cullen routinely worked: the corner at the end of the L-shaped hallway, near the elevator doors and farthest from the nursing station. She had thought he chose it for quiet. Now its position seemed connected to the arrival of medication.
From there, Cullen was often the first and sometimes the only person to see the pharmacy runner. He routinely met the runner and took the delivery tote, a gesture that had looked like helpfulness: relieving someone else of a trip and stocking the unit. The same act could also have given him early access to the drugs before they entered the ordinary storage and dispensing process. Amy’s inference was stark: Cullen might not have needed to touch Pyxis at all. The revelation did not establish precisely what he took or when; it supplied an alternative route that the dispensing reports could not capture.
Access, concealment, and the significance of place
The possibility of bypassing Pyxis mattered because the hospital’s medication workflow depended on acts that appeared routine. At Saint Luke’s Hospital, Cullen had entered the medication room alone after collecting medicines delivered for the night shift. On one occasion he chose an indirect method, preparing syringes and placing altered IV bags in named patient trays among the work of stocking medication. In another instance, he injected digoxin directly into a patient’s IV piggyback port, an action that could resemble an ordinary line flush. These episodes show how access to medication and the ordinary tasks of nursing could provide concealment; they do not, by themselves, prove that a particular pharmacy delivery supplied a particular poisoning.
The unit’s environment sharpened the problem. Cullen preferred the hospital at night, when visitors and many other people were gone. At Saint Luke’s, one-on-one care took place in private rooms, and staff could be occupied with patients while a colleague performed familiar tasks. At Somerset, Amy’s realization redirected attention from a computer’s record of what had been ordered to the physical handoff that preceded storage. The difference was consequential: an electronic record could be complete as a record of transactions and still fail to account for medication acquired through another route.
From suspicion to a new investigative question
Amy’s insight grew out of knowledge that detectives lacked: not only how a canceled Pyxis order behaved, but how nurses, runners, carts, and medication deliveries moved through a unit. Her role was therefore more than identifying suspicious numbers. She translated routine clinical practice into questions investigators could pursue, while also recognizing that the evidence did not yet resolve the case. Her discovery broadened the inquiry from whether Cullen had manipulated recorded orders to whether his ordinary access to incoming drugs had allowed medication to disappear from the system’s view.