The “Murder Gene” and the Red Thread of Violence

The “Murder Gene” and the Red Thread of Violence are linked figures for the Barber family’s history of violence and Andrew Barber’s attempt to keep that history from defining his son, Jacob Barber. The phrase “the murder gene” is not presented as a scientific diagnosis: Andrew calls it a figure of speech. The red thread, by contrast, gives his family story a shape, connecting generations he has tried not to study with the fear that their legacy might reach Jacob. In court and in a private disclosure to Laurie, that effort to contain the past becomes visible—and less certain than Andrew wants it to be.

A Figure of Speech on the Record

During Andrew’s testimony, Neal Logiudice first disputes the suggestion that Jacob could inherit a tendency to violence as though it were a physical trait. Logiudice shifts the question away from biological proof and toward Andrew’s own state of mind when he found a knife: what Andrew believed, rather than what science could establish. He then asks whether Andrew has heard the phrase “the murder gene.”

Andrew says he has heard it in conversation and used it with Laurie. He identifies it as a figure of speech, not a scientific term, and disclaims expertise in science. The distinction matters to the exchange: Logiudice is not asking Andrew to validate a genetic theory but pressing him to account for what the phrase meant to him. When asked what he was referring to, Andrew does not respond. Logiudice then invokes Andrew’s anxiety and asks about his descent from violent men, making family history—not a proven biological mechanism—the subject of the testimony.

The Red Thread and the Family Past

Andrew describes violence as a red thread running through three generations of his family, perhaps further back. He says that stories and a few photographs had come down to him, much of the history lurid and difficult to verify. As a child, he wished he could forget it; later, rather than research or analyze it, he deliberately kept himself apart from the family past. He says he learned to suppress it for Jacob’s sake, leaving nothing to share.

The history he does recount begins with James Burkett, whom Andrew calls the first Barber in this line of family violence. Burkett came east from the frontier and took the Barber name in New York. Andrew’s account of later generations includes his grandfather Rusty Barber, a war hero who later killed a man in a fight over a traffic accident in Lowell, Massachusetts, and Andrew’s father, Bloody Billy Barber, whose history included a violent episode involving a young girl and a knife in an abandoned building. Andrew presents these events as inherited family knowledge, not as a complete or fully verifiable record.

His chosen boundary around that past is deliberate. He says he did not want to trace the red thread, investigate its causes, or make himself part of the family history through study. The image suggests continuity, but Andrew’s response to it is an act of interruption: he intends to absorb the shame and fear himself rather than pass them to Jacob. His refusal to know more is therefore not simple forgetfulness. It is a protective strategy built around the belief that silence can stop inheritance from becoming identity.

Telling Laurie

Andrew eventually tells Laurie what he knows about his ancestry. He says the account takes only five or ten minutes, despite having burdened him for thirty-four years. Once spoken, it seems to him briefly less substantial than he had feared. Laurie, however, responds not with relief but with disappointment in his secrecy and asks why he did not tell her earlier.

Andrew explains that at first he feared Laurie would see him through the family history; as time passed, the secret seemed less important, and he recalls that they had been happy. He insists that his history was never who he was and that it has nothing to do with Jacob. He says he is telling Laurie now because the story may become public, not because it bears on the case or on either of them. When Laurie asks whether he is sure, Andrew answers yes—but the momentary pause before his answer leaves the assurance under strain.

Inheritance, Silence, and Uncertainty

The two images do not settle whether violence is biologically inherited. Andrew explicitly calls the “murder gene” a figure of speech, while Logiudice’s line of questioning exposes the phrase’s relevance as evidence of Andrew’s beliefs and anxieties. The red thread works instead as Andrew’s metaphor for a family story that persists in memory even when he avoids tracing it. Its force lies in the tension between what he can refuse to know and what he fears may still be passed on.

Andrew’s position shifts between certainty and apprehension. He has tried to draw a firm line between his family’s violence and his own identity, and to protect Jacob by withholding the history. Yet the courtroom makes that private language public, while his disclosure to Laurie reveals the cost of keeping it secret. His insistence that the past has nothing to do with Jacob is an intended conclusion, not a fact the testimony can prove. The red thread therefore remains unresolved: a family metaphor Andrew hopes to stop, and a source of doubt that his declaration alone cannot erase.