John McGonnigal

John McGonnigal is a Chicago police sergeant whose encounters with V. I. Warshawski move between procedural friction and unexpected candor. Initially caught between his lieutenant’s suspicion and Warshawski’s insistence on being treated fairly, he later listens to her account of the crisis at the Xerxes plant and offers practical help. His development is modest but consequential: he does not cease to be a police officer, yet he begins to meet Warshawski as a person rather than simply as a difficult witness.

Identity and Professional Position

McGonnigal appears as the younger officer accompanying Lieutenant Bobby Mallory to Warshawski’s apartment. He is identified as a sergeant in the Chicago Police Department and works alongside Mallory, whose suspicion of Warshawski shapes the atmosphere of their first visit. The difference between the two men is immediately apparent to her: while Mallory’s manner carries personal hostility, McGonnigal has always been scrupulously polite and has not joined in his lieutenant’s antagonism.

That contrast has a history. Mallory had been Warshawski’s father’s closest friend, and his complicated feelings toward her included guilt and frustration. McGonnigal has no comparable family connection in the evidence; his dealings with her are professional. Warshawski and McGonnigal have known one another in that capacity for six or seven years, enough for their exchanges to have a familiarity that neither erases mistrust nor makes it impossible to cooperate.

The Interview About Nancy Cleghorn

After Nancy Cleghorn is killed, McGonnigal contacts Caroline Djiak and then accompanies Mallory to speak with Warshawski. Caroline has told him that Warshawski advised Nancy about investigating a zoning-permit problem involving a recycling plant, and that Warshawski might know whom Nancy had approached. McGonnigal relays this account as the basis for the police visit. When Warshawski asks whether Caroline’s words were recorded exactly, he checks his notebook and acknowledges that he did not take them down word for word, though his notes are broadly similar.

That qualification matters to the exchange. Warshawski is angry with Caroline, but objects to the police approaching her as if her involvement in a crime were already assumed. She argues that McGonnigal and Mallory could have asked her what happened before treating the reported account as an accusation. Her explanation is that her conversation with Caroline had been brief and concerned the matter of Nancy’s inquiry. McGonnigal’s reliance on a summary rather than an exact statement helps expose how quickly an incomplete report can harden into suspicion.

Warshawski then discovers that Caroline has withheld a relevant piece of history. Caroline and Nancy had testified that they received death threats for opposing Steve Dresberg’s proposed PCB incinerator. Caroline had not told the police about those threats. Warshawski insists that she amend her statement and urges investigators to look at people previously known to have threatened Nancy. She also tells Caroline that she herself will inform McGonnigal of the conversation. Her appeal to his professional credibility—he may dislike her, but knows her account can be trusted—shows that, despite their differences, she regards him as a usable point of contact.

A Meeting at SCRAP

Warshawski goes to SCRAP and interrupts a meeting at which Caroline is speaking with four other people. Caroline is embarrassed when Warshawski explains that McGonnigal visited her that morning, then takes her aside to talk privately. In the cramped office beside the conference room, Warshawski explains the police inquiry and presses Caroline about what she told the sergeant. The discussion turns from the immediate misunderstanding to Nancy and the threats connected with the incinerator dispute.

McGonnigal is not present for this conversation, but it changes what Warshawski intends to tell him. She does not ask him to accept an untested accusation; instead, she wants Caroline’s omitted information entered into the investigation so police can examine possible prior threats. The sequence also clarifies the tension in McGonnigal’s role: he is the officer to whom Warshawski means to report what she has learned, even though the manner of his first approach has made her wary. Her confidence in his capacity to assess her professionally coexists with her criticism of the police interview.

The Xerxes Plant and a Change in Tone

Later, after the confrontation at the Xerxes plant, McGonnigal finds Warshawski sitting exhausted on the plant floor. She has been exposed to the plant’s chemical atmosphere and is thinking anxiously about possible effects on her kidneys. He helps her to her feet and leads her outside to the loading bay, where the police have opened the doors facing the river. His offer of fresh air is a direct, practical response to her condition. For Warshawski, however, the gesture remains ambiguous at first: she wonders whether his careful tone comes from police training rather than genuine concern.

McGonnigal asks whether she wants to tell him what happened or wait to speak with Mallory. Warshawski does not want to recount the events repeatedly, and asks whether speaking to him will mean having to repeat everything for the lieutenant. McGonnigal acknowledges the police habit of taking a story more than once, but offers to take an outline for the moment and get her home while there is still time for sleep. His promise does not eliminate the procedures she distrusts, but it gives her a reason to begin explaining.

When he becomes defensive about her distrust of the police, Warshawski reminds him that her father was a beat cop and rejects the assumption that she regards officers as enemies. McGonnigal then admits that he had expected his sensitivity training to help him handle a difficult witness and that he had failed within minutes. He promises not to criticize her methods and lets her finish. His admission shifts the exchange: rather than claiming that his training makes him automatically understanding, he recognizes that his own conduct has fallen short.

Warshawski gives him an outline of the events, including how Curtis Chigwell became involved with Art Jurshak and Steve Dresberg, and how Chigwell’s sister, Florence Chigwell, came along because she was worried about him. She explains that Florence took up the plan to approach the plant by rowing along the Calumet River, and that she handled the oar capably. McGonnigal listens as Warshawski describes the separation of the men at the plant and asks about the people in the ambulance and the shooting. The exchange makes him a recipient of her account at a moment when she is physically and emotionally spent, not merely an officer collecting information after the fact.

Personal Disclosure and Narrative Role

On the drive afterward, McGonnigal tells Warshawski that he understands why she would return to someone waiting for her. He relates this to his own grandfather, who died five years earlier. The week before McGonnigal’s promotion came through, he had been angry that his grandfather would not live to see it and had nearly resigned. He recalls his grandfather’s perspective, then says he has never shared the story with anyone else. The disclosure gives their conversation a degree of intimacy that the earlier interview lacked, without converting their professional relationship into a friendship beyond what the text establishes.

McGonnigal’s role is defined by this movement between the official and the personal. His notebook and questions belong to police procedure; his offer to help Warshawski outside and his story about his grandfather make room for a more individual understanding. His initial reliance on Caroline’s imperfectly recorded account shows the risks of routine investigative practice, while his later admission of failure makes him more than a mouthpiece for that practice. He remains part of the institution Warshawski challenges, but the final exchange suggests that listening, honesty about one’s limits, and a small act of personal disclosure can make cooperation possible.