The Hidden Medication
Night TrainThis thread traces the lithium clue from a suppressed toxicology result to the collapse of a medical explanation for Jennifer's death.
increasing
Bearing strength in each event
decreasing
The Report Is Withheld

The Report Is Withheld
A Hidden Result
Tom suppresses Jennifer's toxicology report, keeping the discovery of lithium from Mike during the first investigation. The omission protects the family from an answer Tom is not ready to face.
A Misleading Lead
The hidden result later makes the drug appear capable of explaining Jennifer's behavior. Its concealment also creates distrust around the official account.
Lithium at the Funeral

Lithium at the Funeral
A Disclosure
At the funeral, Miriam tells Mike that Jennifer was taking lithium and that Tom had made the report disappear. The revelation gives the family a possible medical frame for the death.
A New Question
Lithium suggests a mood disorder, but neither parent knew Jennifer was taking it. The medicine points toward secrecy without explaining where it came from or what it meant to her.
The Doctor's Denial

The Doctor's Denial
No Prescription
Hi Tulkinghorn tells Mike that Jennifer was not his patient for psychiatric care and had never been on lithium through him. The answer eliminates the obvious medical source.
Self-Treatment Suspected
The doctor imagines that Jennifer may have medicated herself, perhaps worsening an unrecognized condition. The explanation is plausible but rests on conjecture, not a diagnosis.
Trader's Knowledge

Trader's Knowledge
A Belated Admission
Trader says he already knew about the lithium, having learned it from Miriam after Jennifer died. He had not recognized the medication while they were together.
A Relationship Reconsidered
His ignorance makes the drug less like a settled explanation and more like proof of how much remained private between intimate partners. He begins to question his own ability to understand the woman he loved.
The Body Refutes It

The Body Refutes It
The Pathologist's Finding
Paulie No tells Mike that Jennifer's organs showed no damage expected from prolonged lithium use. Her kidneys appeared exceptionally healthy, making sustained treatment unlikely.
A False Explanation Falls
The drug cannot carry the explanatory weight the family and investigators placed on it. Mike suppresses the result from Tom and retreats toward a story she knows is incomplete.
Mid-March, before the funeral
March 18
Late March
Late March, during Mike's return visit
April 2, evening