Joe: A Character Analysis from Presumed Guilty

Overview

Joe is Bea’s elderly father, a former Vietnam tunnel rat and recovering alcoholic living alone on a small farm near Mirror Lake. Diagnosed with terminal lung cancer, he has outlived his prognosis by years, stubbornly refusing to let illness define his final days. To the community, Joe is a cantankerous barstool philosopher at the VFW, quick to argue about politics or military service. To his family, he is a complicated source of both love and pain—a man whose violent past as an alcoholic husband and absent father contrasts sharply with his devotion to his grandson Aaron. The novel’s climactic revelation, occurring only in the final chapters, recasts Joe not as a gruff but harmless old man, but as the person who orchestrated Mae Potter’s death and allowed Aaron to stand trial for it.

Plot Role

Joe’s role in the story splits into two phases. For most of the novel, he appears as a peripheral figure: the protective grandfather who loans Aaron his truck after Mae’s body is discovered, and a reluctant witness during the trial. His testimony is brief but crucial—he admits under cross-examination that he would lie for Aaron if he believed it were for the right thing. This admission humanizes the defense but also plants a seed of doubt about how far Joe might go to protect his grandson.

The second phase begins after the not-guilty verdict. Joe’s cancer worsens, and Rusty, now free of trial pressure, examines phone records that show Mae called Joe after calling Aaron. Confronted, Joe confesses that he went to meet Mae at Ginawaban, watched her attempt suicide by hanging, then let her die, and ultimately strangled her to make sure she was dead. He then staged the scene to look like an accident. Joe’s confession is the novel’s final, devastating twist, retroactively making him both the true killer and the reason the legal system nearly convicted an innocent man.

Motivations and Traits Shown Through Actions

Joe’s actions are driven by a fierce, possessive love for Aaron that overrides any moral or legal boundary. When Aaron is arrested, Joe offers to confess to the murder himself—a dramatic gesture that Bea briefly entertains. Later, during his trial testimony, Joe deliberately obscures the truth about how Aaron acquired the truck and sleeping bag, trying to shield him from suspicion. His motivation is not malice toward Mae but a calculation that her life was a net negative for everyone around her, especially Aaron.

Joe is also shaped by his own history of trauma. As a tunnel rat in Vietnam, he killed in close combat; as a young husband, he was an abusive drunk who beat his wife and missed his daughter’s graduation. He stopped drinking only when his cancer medication forced him to, and he frames his sobriety as a favor to Aaron, not an apology to Bea. His refusal to apologize or even acknowledge the depth of his past wrongs shows a man who has insulated himself from guilt through self-justification.

A key trait is his instrumental view of truth. Joe lies easily—to Rusty, to the police, and on the witness stand—because he believes the ends justify the means. He treats the legal system as a game he can outwit, and his final conversation with Rusty reveals a chilling pride in having “gotten away with murder.” He dismisses Rusty’s condemnation by insisting that those who do the hard, dirty work of the law—the executioners, the jailers—are the same kind of men he is.

Chronological Arc

Joe’s arc is defined by a slow unveiling. In early chapters, he is a background figure: Rusty visits him at the VFW to ask about Aaron’s whereabouts, and Joe deflects with gruff independence. When Aaron goes missing after Mae’s death, Joe gives him the truck without asking questions, then lies to police about it. At trial, he testifies with a mix of vulnerability and defiance, winning sympathy from the jury.

The real turn comes after the acquittal. Joe’s cancer accelerates, and his physical decline strips away the bravado. When Rusty confronts him with the phone records, Joe admits the truth with a cold matter-of-factness, refusing to express remorse. His final act is to demand that Rusty keep the secret, appealing to the same love for Aaron that motivated the killing. In his last scene, he turns away from Rusty and focuses on the television, signaling that he has said all he will say. Joe dies offscreen, unpunished and unrepentant.

Relationships

Bea. The father-daughter relationship is one of the novel’s most painful threads. Bea remembers Joe as a drunk who brutalized her mother and humiliated her. She has never received the apology she craves, and her attempts to confront him only end in mutual anguish. Yet she also cannot cut ties, because Joe is the only grandfather Aaron has ever known. Bea’s conflicted feelings—rage, duty, pity—mirror the novel’s theme of family loyalty versus truth. Rusty observes that visiting Joe is like being shackled to two horses galloping in opposite directions.

Aaron. Joe’s love for Aaron is the one pure thing in his life. He attends NA meetings with him, drives him to appointments, and calls him “the one soul who ever actually loved you.” Joe’s killing of Mae is, in his mind, an act of protection—removing what he sees as a destructive force from Aaron’s life. He never considers that his actions would cause Aaron to be accused, and when the trial happens, he watches “like dying alive.” His inability to see the harm he has done to Aaron is the tragedy of their bond.

Rusty. Rusty treats Joe with wary respect, recognizing his toughness and his devotion to Aaron. The two share a grudging camaraderie, meeting for non-alcoholic beer at the VFW. But after the confession, Rusty is horrified. He calls Joe a “lowdown fucked-up shitty human being.” Joe counters with a defense of his own code: protecting a boy who loved him was a duty equal to any the law demanded. Their final exchange crystallizes the novel’s conflict between moral absolutes and situational ethics.

Key Decisions and Consequences

Decision 1: Giving Aaron the truck and lying to police. Joe knowingly helps his grandson flee after Mae’s body is found. This decision makes him an accessory after the fact and damages the investigation. The consequence is that Aaron becomes the prime suspect, and Joe’s lies are later used to impeach his credibility at trial.

Decision 2: Letting Mae die. Confronted with Mae’s botched suicide attempt, Joe chooses not to help her. He admits that he may have pushed her off the boulder to prevent her from saving herself. This passive decision becomes active murder when he strangles her after she falls. The consequence is that Mae dies, and Joe spends months watching Aaron face trial for a crime he himself committed.

Decision 3: Confessing only to Rusty. Joe extracts a promise of silence from Rusty, ensuring his crime will never be prosecuted. The consequence is a lifetime of secret knowledge for Rusty and Bea, and the closure of the case without official justice. Joe’s act ensures that the legal system’s verdict of not guilty stands, but the true killer remains free.

Themes and Symbolism

Joe embodies the theme of family loyalty versus truth. He kills not out of hatred for Mae but out of love for Aaron—a love so fierce it overrides any commitment to honesty or law. The novel asks whether such loyalty can ever be justified when it leads to innocent suffering.

He also represents the limits of the law. Joe’s confession reveals that the legal system can be manipulated by a determined liar, and that true justice may never be served. Rusty, a former judge and lawyer, is forced to accept that some crimes will never be punished.

Intergenerational trauma is central to Joe. His violence as a young man repeats itself in his later violence against Mae. His refusal to apologize or change means that the wounds he inflicted on his family remain unhealed. Yet he does transform into a devoted grandfather for Aaron, suggesting that redemption is possible—but incomplete.

Joe’s status as a veteran carries symbolic weight. His experience in Vietnam taught him to kill without remorse, and he carries that mindset into civilian life. His resentment of the military and his sense that the “hard things” of society are left to men like him reflects a broader critique of how society uses and discards its veterans.

Book-Specific Questions and Answers

Q1: Why does Joe kill Mae instead of saving her?
A1: Joe sees Mae as a lifelong threat to Aaron. When she attempts suicide, he decides that letting her die is the best outcome for his grandson. He actively prevents her from saving herself, then finishes the job by strangling her. He believes he is acting as a protector, not a murderer.

Q2: Does Joe ever regret what he did?
A2: Explicitly, no. In his confession to Rusty, Joe expresses no remorse for Mae’s death. He calls it “good riddance” and blames her for the situation. He regrets only that Aaron was accused and suffered during the trial, but he frames that as an unfortunate consequence of Rusty’s legal maneuvering, not his own actions.

Q3: How does the novel use Joe to explore the theme of racial bias?
A3: Joe is a white man with a mixed ancestry (Mexican and Ho-Chunk) that he rarely acknowledges. His fierce protectiveness of his Black grandson, Aaron, operates in a rural white community. The trial exposes the risks of prejudice, but Joe’s own bias is directed at Mae’s wealth and entitlement, not race. His willingness to kill for Aaron subverts the stereotype of the disconnected grandfather, yet the novel also shows how his love cannot shield Aaron from a system that defaults to suspicion.

Q4: Why doesn’t Joe confess publicly after the verdict?
A4: Joe confides only in Rusty because he trusts Rusty to keep his word. A public confession would ruin the Potters’ closure, expose Aaron to renewed trauma, and lead to Joe’s own prosecution. Joe values his freedom and his relationship with Aaron more than abstract justice. Rusty agrees to keep the secret partly out of his own exhaustion and partly because exposing the truth would destroy Bea and Aaron.

Q5: Could Joe be considered a sympathetic character despite his crime?
A5: Interpreted through his background, Joe is a product of a brutal upbringing, war trauma, and addiction. His love for Aaron is genuine, and he is the only family member who stays reliably present for the boy. However, his moral framework is dangerously self-serving. The novel invites readers to see both the humanity and the horror in him—sympathy for his struggles but condemnation for his choices. Rusty’s final judgment (“one lowdown fucked-up shitty human being”) coexists with the recognition that Joe was driven by a twisted version of love.