Holly Gibney’s Dayton investigation

Holly Gibney’s Dayton investigation turns a trail of dates, records, and recollections into a challenge to the apparent solution of two murder cases. Following the stolen van’s route and examining what happened at the Heisman Memory Unit, she establishes that Terry Maitland and Heath Holmes were both present there—and, on April 26, encountered one another. That physical overlap makes the cases harder to explain as ordinary mistaken alibis and leads Holly to suspect a third, unidentified perpetrator.

Purpose and investigative starting point

Holly’s immediate work in Dayton is to check the chronology surrounding the van and Terry Maitland’s family trip. In an email to Alec Pelley, she reports that menus from Tommy and Tuppence had been distributed in a nine-block area on Thursday, April 19. Mary Hollister, a co-owner, confirms the date. Holly uses it to place Merlin Cassidy’s abandonment of the van in a nearby parking lot on that date, and notes that the Maitland family did not arrive in Dayton until around noon on Saturday, April 21. She considers it almost certain the van was already gone by then, but plans to check with local police rather than treat the inference as settled.

The next planned step is a visit to the Heisman Memory Unit and an attempt to speak with Terry’s father, Peter Maitland, if he is having a sufficiently clear day. Holly also intends to question people who work at the facility, recognizing that staff may provide useful information even if Peter cannot. Her method combines documentary chronology with interviews: the dates narrow possible explanations, while people at the care center can connect those dates to events the public record may not contain.

The Memory Unit and its overlooked testimony

At the care center, Holly initially encounters an ordinary visitor check-in. When she asks to see Peter, however, receptionist Mrs Kelly asks whether Holly is family. Holly says she is a friend of the family, reasoning that she is working for Mrs Maitland’s lawyer, who is working for Mrs Maitland. The exchange marks a practical obstacle to the inquiry: Holly has no family status, so gaining access depends on how she explains her professional connection.

A staff member, Wilson, tells Holly that Peter’s memory has deteriorated. He had previously experienced clearer periods, but now mostly sits and stares. Wilson distinguishes Peter’s condition from the question Holly is pursuing: whether Heath Holmes knew Terry. He says Holmes worked among the odd-numbered suites on B Wing and had said that residents could retain some awareness of him even when much of their memory was gone. Peter’s room was B-5, placing him among the residents Holmes’s work could bring him into contact with.

Wilson also recounts what happened after the murders. Police learned that Holmes had been at the Memory Unit and searched the B Wing suites, paying particular attention to B-5 after janitor Cam Melinsky reported seeing Holmes leave it. Melinsky had been washing the hall floor when Holmes slipped. Wilson’s account thus supplies a concrete reason the room came under scrutiny, as well as a reported detail about what the search uncovered.

The most consequential part of Wilson’s information reaches him indirectly. His friend on the nursing staff, Penny Prudhomme, overheard an officer speaking on the phone after the search. According to Wilson, the officer said police had found blond hair in B-5. Holly immediately considers whether investigators tested it against hair from one of the Howard girls, and Wilson expects that forensic testing would have been done. The account does not establish whose hair it was or what any test showed; its importance is that a physical trace in Terry’s father’s room had entered the investigation, while Holly was assembling a separate connection between Holmes and Maitland.

The encounter that breaks the alibi pattern

When Holly presents her findings to Ralph Anderson, he questions how she can be confident about the Frank Peterson case while she is in Dayton and Peterson was murdered in Flint City. Holly answers by identifying a parallel case in Trotwood. During the same general period as Maitland’s Dayton stay, two girls were murdered there. The suspect arrested in that case had claimed to be staying with his mother in another town, and she corroborated his account; he had also been seen in Trotwood, where the girls were abducted. Surveillance footage recorded him there.

Holly argues that the resemblance to Maitland’s situation is not merely that both suspects offered alibis. Holmes was an orderly at the Heisman Memory Unit. Though supposedly on vacation, he was there at least once during the week Maitland was visiting Peter. More strikingly, on April 26—the date of Maitland’s last visit before he and his family flew home the next day—Holmes and Maitland bumped into one another. Holly presents the encounter as literal and witnessed, not as an inference from overlapping schedules. Anderson reacts with disbelief, underscoring how sharply the reported meeting conflicts with the assumption that the cases can be explained as conventional alibi-making.

The date also gives the investigation a precise hinge. Holly’s earlier chronology places the Maitland family’s arrival on April 21; her inquiry at the facility identifies April 26 as Terry’s final visit to his father and as the day the two supposed killers crossed paths. The coincidence is therefore not simply that two cases share a similar pattern. The alleged perpetrators were present in the same place during the same week, and, on Holly’s account, met face to face.

From parallel cases to the outsider hypothesis

Holly does not conclude that Holmes killed the Howard girls in place of Maitland, or that Maitland killed Frank Peterson. She tells Anderson she believes neither man committed the murders attributed to him. Her explanation is that someone else—the outsider—was responsible. This conclusion follows from the pattern she has assembled: a similar crime in another locality, a suspect connected to the care facility, reported evidence associated with Peter’s room, and the direct encounter between Holmes and Maitland.

The investigation also throws Ralph’s earlier decisions into relief. Before Maitland’s arrest, Ralph had worried that the inquiry lacked background and that Maitland would claim an alibi, but he and the prosecutors proceeded because they believed the evidence pointed to the right man and feared he could harm another child. They chose not to investigate his movements beforehand, reasoning that questions might alert a dangerous suspect. When the evidence of Maitland’s appearance at Harlan Coben’s talk and other alibi details emerged, Ralph recognized that they had been blindsided and that the decision not to check had seemed careless. Later, weighing the van-related clues, the teachers’ accounts, the conspicuous appearance at the talk, and the fingerprints on the book, he could no longer say with certainty whether Maitland had killed Frank Peterson.

Holly’s Dayton work does not by itself settle every piece of evidence or provide a full account of the outsider. It changes the shape of the question. Instead of treating contradictory alibis as familiar defenses offered by guilty suspects, she links the cases through a shared institution and a verifiable encounter. Her findings make the apparent certainty of Maitland’s guilt untenable and give the investigation a reason to look beyond both accused men.