Williams Rule

The Williams Rule is central to C.J. Townsend’s strategy for prosecuting William Rupert Bantling beyond the murder of Anna Prado. In the novel, it offers a route for placing the facts of one murder before a jury considering others, where the investigation has not yet produced enough direct physical evidence to connect Bantling to each victim. It is a possible bridge between cases, not a substitute for proving them: C.J. knows that the plan depends on a conviction and on the court allowing the evidence to be heard.

Role in the Prosecution Strategy

C.J. initially focuses on Anna Prado’s case. The prosecution has her blood in Bantling’s shed, her body in the trunk of his Jaguar, and a weapon recovered from the shed. C.J. also cites the circumstances of Anna’s abduction from Level and the drugs used to incapacitate her as evidence supporting the case. Yet she wants evidence connecting Bantling to the other victims as well, especially the hearts she believes he kept as trophies.

Her intended sequence is consequential: first win a conviction for Anna’s murder, then use both the conviction and the facts of that crime in proceedings concerning the other murders under the Williams Rule. She hopes the cases can ultimately be tried together. That would allow jurors to hear about Anna’s murder even if investigators have no physical evidence directly linking Bantling to every other victim.

Limits and Dependencies

The plan remains conditional. C.J. recognizes that the cases against the other victims are still circumstantial, and that a conviction in Anna’s case has not yet been secured. The fishing line found at Morgan Weber’s scene offers a possible direct connection, but C.J. considers it insufficient on its own. The missing trophies matter to her because they might supply stronger links between Bantling and the women whose murders remain unproven in court.

The rule cannot repair weaknesses in the investigation by itself. After Victor Chavez gives an evasive account of the stop that led police to Bantling, C.J. worries that jurors may distrust him and accept the defense claim that Bantling was framed. If Bantling is acquitted in Anna’s case, C.J. fears there will be no conviction to introduce through the rule; a later judge might also bar the jury from hearing the facts of Anna’s murder. In that event, the prosecution could lose the foundation it hoped would support the other cases.

Legal Compromise and Trial Reversal

C.J.’s reliance on the rule is also shaped by the disputed stop and search. She knows that the stop lacked probable cause and that the search was therefore unlawful. But without that search, the police would not have found Anna’s body in the Jaguar’s trunk or the evidence at Bantling’s home, and they might never have identified him as a suspect. C.J. chooses to help preserve the case by accepting a compromised account of the stop, telling herself that the sacrifice serves the greater good. The Williams Rule strategy thus rests not only on the prospect of a conviction, but on evidence whose discovery carries a serious legal vulnerability.

The trial later shows how fragile the prosecution’s position remains. Lourdes Rubio’s witnesses offer explanations for evidence C.J. had regarded as incriminating: the Jaguar had been left overnight in an unsecured lot while numerous employees could access it, and testimony about Bantling’s taxidermy work supplies a possible use for a number-five scalpel. A pathology expert also challenges the interpretation of blood traces on the blade and in the shed. These challenges do not change what C.J. hoped to achieve through the Williams Rule, but they expose the prior hurdle: unless the Anna Prado case produces a conviction, the planned use of its facts in other prosecutions may never become available.

Significance

The Williams Rule represents C.J.’s attempt to make a pattern legible in court when separate investigations have yielded few direct links. The murders appear connected to the task force, but the physical evidence is uneven, and the objects C.J. most wants—the victims’ hearts—have not been found. Her strategy seeks to turn a successful prosecution of one murder into a means of presenting a wider account of the alleged crimes.

That strategy also concentrates risk. Its promise depends on the Anna Prado conviction, the court’s decision about what other-case evidence jurors may hear, and the prosecution’s ability to withstand challenges to the evidence that brought Bantling before them. In the story, the rule is therefore both a legal mechanism and a measure of the case’s uncertainty: it may help connect the murders, but it cannot guarantee that the connections will survive trial.