Chapter 7: Autopsy, Hidden Cash, and a Second Victim

Spoiler Notice: This summary and analysis contain full spoilers for Chapter 7 of Jigsaw by Jonathan Kellerman.

Summary

Milo calls Alex to his closet‑sized office and delivers the preliminary autopsy on Martha: cause of death was strangulation, likely manual, with no ligature marks; the freezing made details hazy, but the hyoid bone and thyroid cartilage crumbled, suggesting she was fragile and malnourished. No signs of thawing and refreezing support a time of death about six or seven days before the discovery. The last confirmed sighting was four days prior at a discount grocery where she paid cash and bought frozen food. Crime‑scene analysis focused on the bathroom, where tiny blood specks on the wall and Luminol‑lit splotches in the tub and drain pointed to dismemberment—something like a jigsaw would fit, though no tool was recovered. During the search, Alicia found a manila envelope with $5,060 in cash stashed between old newspapers, roughly a month’s worth of Martha’s pension and Social Security.

Milo has identified Martha’s dependent, Lynne Matthias, age 46, from retirement records and suspects she is the woman seen at the house. Marriage records show Martha first wed Pablo Gutierrez at 21; he died in a construction accident four years later. A year later she married fellow officer Richard Matthias, who died of cardiac disease when Martha was 50. Alex theorises that Martha’s hoarding may have been an anxious response to loss, or signs of early dementia catalyzing her retreat from Homicide. The chapter closes as Milo pulls out another blue binder: Sophie Barlow, a 38‑year‑old office manager, found strangled at her kitchen table with two cigarette butts in a red plastic bowl—exactly as he had described earlier—juggling two active whodunits.

Key Events

Milo relays the autopsy report: strangulation, fragile body, no ligature marks, consistent with manual force and the frozen state.
Time‑of‑death estimate remains firm at roughly a week; last sighting at a discount grocery four days before the body was found.
The bathroom is identified as the likely crime scene; blood specks and drain evidence indicate dismemberment with a tool akin to a jigsaw.
A hidden cash envelope of $5,060 is discovered, reflecting Martha’s habit of keeping cash on hand.
Martha’s retirement file reveals a daughter, Lynne Matthias, 46, making her a person of interest.
Marriage‑record search shows Martha was widowed twice: first husband died in an industrial accident, second husband (a fellow cop) died of heart disease.
Alex speculates Martha’s hoarding was anxiety‑driven or tied to dementia, possibly explaining her transfer out of Homicide.
Milo introduces the Sophie Barlow murder: strangulation with two cigarette butts in a bowl, mirroring an earlier clue.

Character Development

Milo Sturgis oscillates between sardonic humour and genuine frustration as he processes two homicides; his reliance on Alex’s psychological insights is on full display.
Alex Delaware serves as the psychological sounding board, quickly connecting Martha’s personal tragedies to her hoarding and speculating about dementia, reinforcing his role as the non‑police interpreter of human behaviour.
Martha Gutierrez‑Matthias gains a tragic backstory: twice widowed, she retreated into a cluttered, isolated existence where even paying cash became a way to control a world that had repeatedly collapsed.
Lynne Matthias emerges as a mysterious figure—a dependent without a current address, poised to become a central suspect or victim.
The parallel victim, Sophie Barlow, is only glimpsed through crime‑scene photos, but her staged death with the cigarette butts hints at a signature that may link cases.

Themes, Symbols, or Motifs

Hoarding as a response to trauma: The clutter and cash‑only lifestyle become physical manifestations of Martha’s need to manage unbearable anxiety after losing two husbands and perhaps facing cognitive decline. Alex explicitly frames the behaviour as an obsessive attempt at anxiety reduction.
Hidden lives and buried secrets: The cash envelope, the obscured bathroom evidence, and the unknown daughter all underscore the gap between Martha’s outwardly pleasant façade and the chaotic reality of her later years.
The weight of dual investigations: Milo’s weariness at juggling two murders reflects the novel’s broader meditation on the endlessness of police work and the psychological toll of unanswered questions.
The jigsaw metaphor: The dismemberment tool is not yet found, but it echoes the title—each piece of evidence, like the cigarette butts, must be fitted into a coherent picture.

Why This Chapter Matters

Chapter 7 deepens the Martha investigation from a baffling murder into a study of loss and mental decay. By uncovering Martha’s marriages, her hoarding, and her daughter, the narrative shifts from forensic puzzle to family tragedy—and makes Lynne a prime lead. Simultaneously, Milo’s introduction of the Sophie Barlow case forges an explicit parallel, suggesting a possible pattern or signature that will demand his attention. The chapter also highlights the partnership between Milo and Alex, cementing their dynamic as the engine that drives both plot and theme.

Study Questions and Answers

What does the discovery of the cash envelope suggest about Martha’s lifestyle and her possible relationship with the killer?
The $5,060 in cash, roughly a month’s combined need, shows Martha avoided banks and paid for everything with cash. This habit might have made her home a target if someone knew about the money. However, the killer did not ransack the house; the cash was hidden among old newspapers, so either the killer missed it or was searching for something else—perhaps a personal connection like the daughter.
Why does Alex propose hoarding as either an anxiety‑reduction mechanism or a sign of early dementia, and how does this shed light on Martha’s past?
Alex explains that any obsessive behaviour can be an attempt to reduce anxiety. Martha lost two husbands in quick succession and may have been facing cognitive decline; hoarding could have been her way of exerting control. Her transfer out of Homicide years ago might have been a quiet acknowledgment that she could no longer handle the demands of major crimes, reinforcing the idea of a gradual withdrawal from the world.
How does the Sophie Barlow case echo earlier details in the novel, and why is this significant?
Sophie Barlow was found strangled with two cigarette butts placed in a bowl in front of her, a detail Milo had mentioned before as a peculiar signature. Its reappearance as an active case connects the cigarette clue to a concrete victim, raising the possibility of a serial killer or a copycat. The parallel pushes Milo’s workload and the reader to consider whether the two murders are truly separate or part of a single, dark tapestry.

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