CHAPTER TWENTY-ONE
The personnel files arrived on Isla’s borrowed desk seventeen minutes after Kate hung up, which meant Kate had started pulling them before the call ended.
That was Kate—three steps ahead, always, the kind of boss who anticipated the request before it was articulated and had the machinery in motion while you were still formulating the words.
The files landed in Isla’s inbox as a single compressed folder: sixty-two names, backgrounds, employment histories, and—at Isla’s specific request—any personal information that had surfaced during the renovation project’s extended vetting process.
Vaughn appeared in the doorway of the glass-walled office with two cups of precinct coffee, which was a peace offering and a survival strategy in equal measure.
She handed one to Isla without comment and dropped into the chair beside her, pulling her own laptop across the desk with the practiced economy of a woman who’d spent too many Saturday nights in this building and had stopped resenting it somewhere around the second murder.
"Kate sent the files," Isla said.
"I saw. Sixty-two people." Vaughn blew across the surface of her coffee. "You want to tell me what we’re looking for, or do you want me to guess?"
"Ancestry." Isla opened Welles’s email again and turned the screen so Vaughn could read it. "Welles took a DNA test and discovered Ojibwe heritage he didn’t know about. He talked about it openly—emailed colleagues, brought it up at breaks. It was the kind of personal revelation people share when they’re excited, the way you’d tell coworkers you were expecting a baby or buying a house. Water-cooler news."
Vaughn read the email. Her eyes moved across the screen with the careful, systematic attention she brought to everything—left to right, top to bottom, nothing skipped.
When she finished, she looked at Isla with an expression that was half skepticism, half reluctant admission that the thread had texture.
"You think the ancestry discovery is why he was killed."
"I think it’s a variable we haven’t accounted for.
Welles broke the pattern—basement location, overflow weapon, no exhibit correspondence.
If the first two murders were about the renovation, Welles was about something else.
Or something additional." Isla pulled up the files for Lane and Hartley.
"I want to know if the other two victims had similar experiences.
Recent ancestry discoveries, DNA tests, anything that altered their understanding of their own heritage. "
It took forty minutes. Vaughn worked Lane while Isla took Hartley, and they moved through the files with the systematic intensity of two people who could feel the clock and the dark pressing against the precinct windows in equal measure.
The files Kate had sent included not just employment records but the informal notes that accumulated during any extended renovation project—meeting minutes, email chains, team-building surveys, HR documentation.
The kind of paper trail that captured the texture of a workplace, the offhand comments and personal disclosures that people made when they spent months working alongside each other in a building with bad lighting and shared coffee.
Vaughn found Lane first.
"Here." She turned her laptop toward Isla. An email from Thomas Lane to Gary Hess, dated five months before his death, with the subject line "You’re not going to believe this." The tone was bemused, self-deprecating—the voice of a man confronting information that rearranged something he’d taken for granted. Lane had taken a DNA ancestry test at his wife Karen’s suggestion—she’d given him a kit for Christmas.
The results had come back showing significant Scandinavian ancestry.
Norwegian and Swedish, predominantly. Lane had grown up believing his family was entirely Irish.
Three generations of Lanes in Duluth, all of them Irish-Catholic, St. Patrick’s Day every year, the whole identity built on a foundation that turned out to have a second layer underneath.
He’d written about it with the good-natured bewilderment of a man who found the discovery more amusing than troubling.
Guess I’ve been celebrating the wrong heritage my whole life, he’d written.
Karen says I should start eating lutefisk.
I told her I’d rather die. He’d sent the email to Hess and copied two other crew members.
He’d also, according to a follow-up email from Hess, brought it up repeatedly on site—it had become a running joke among the crew, the Irishman who turned out to be a Viking.
Isla stared at the screen. The gossamer threads were thickening into rope.
"Hartley," she said, and turned to her own files.
It took another fifteen minutes, because Hartley’s disclosure hadn’t come through email.
It came through the project’s team-building survey—a questionnaire the renovation’s HR coordinator had circulated to foster cohesion among the mixed crew of construction workers, designers, contractors, and historical consultants who’d been thrown together for the project.
One of the questions had been lighthearted: Tell us something surprising about yourself.
Hartley had written that she’d recently discovered, through a DNA ancestry kit, that she had significant Eastern European heritage—Polish and Ukrainian—that her family in Minneapolis had never mentioned.
She’d grown up believing her background was exclusively English and German.
The discovery had surprised her enough that she’d started researching immigration patterns from Eastern Europe to Minnesota, and she’d mentioned wanting to incorporate some of that history into the Armory’s exhibit design.
The survey responses had been shared with the entire team. Forty-plus people had read Hartley’s answer.
Isla sat back and let the pattern settle into place.
Three victims. All three had taken DNA ancestry tests within the last six months.
All three had discovered unexpected ethnic or geographic origins—heritage that contradicted the family narratives they’d grown up with.
Welles found Ojibwe roots. Lane found Scandinavian roots beneath an Irish identity.
Hartley found Eastern European roots she’d never known about.
And all three had talked about these discoveries openly, in the workplace, among the people connected to the renovation.
"Sarah." Isla’s voice was steady, but something beneath it had shifted into a register that Vaughn, after nearly two weeks of partnership, had learned to recognize. "It’s not about the renovation. It’s about the ancestry.
Someone is killing people who’ve discovered they’re not who they thought they were. "
Vaughn was quiet for a long moment. The precinct hummed around them—phones ringing distantly, the murmur of the skeleton crew, the building’s HVAC system pushing warm air through vents that smelled of dust and old carpet.
Outside the narrow windows, the last bruise of twilight had faded into full dark.
"That’s—" Vaughn started, then stopped. She looked at the three files spread across their adjoining screens—Lane’s email, Hartley’s survey, Welles’s correspondence—and Isla watched the detective’s expression cycle through the stages: resistance, recalibration, acceptance.
"That’s a motive I’ve never come across before. "
"Neither have I." Isla was already thinking three steps ahead, the way the pattern demanded. "But it means the victims weren’t selected because of their roles in the renovation. They were selected because they opened their mouths about what they’d found in their DNA.
The renovation just put them all in the same building, talking to the same people. "
"Which means—"
"Which means anyone else on that team who’s taken an ancestry test recently and talked about it is a potential target.
" Isla pulled the full personnel list back up.
Sixty-two names. "We need to contact every person on this list. Tonight.
Find out who else has had their ancestry tested in the last year and discussed the results at work. "
Vaughn was already reaching for her phone. "I’ll start with DiMaggio. He’s the project manager—if anyone’s heard the water-cooler talk, it’s him."
DiMaggio answered on the fourth ring with the cautious tone of a man who’d learned that calls from the police after dark never brought good news. Vaughn put him on speaker and asked the question directly: had anyone else on the renovation team mentioned taking a DNA ancestry test recently?
The pause on the other end was the sound of a man searching his memory with sudden, anxious precision.
Then: "Marissa. Marissa Skelling. She was talking about it maybe two weeks ago, in the break trailer. Said she’d found out she had—I don’t remember exactly—Middle Eastern heritage, I think?
Syrian or Lebanese. She was surprised by it.
A few of us were in the trailer and she was showing the results on her phone. "
"Who was in the trailer?"
"Me. Palmer—Raymond Palmer, the historian. Hess was in and out. A couple of the crew guys. It was just a lunch break conversation, you know? People share things."
People share things. And sometimes the things they share get them killed.
"Is Skelling on the furlough list?" Isla asked.
"Yeah. Everyone’s furloughed since the building got shut down. She’s at home, I assume."
Isla was already on her feet, reaching for her jacket. Vaughn mirrored the motion on the other side of the desk, phone still pressed to her ear as she asked DiMaggio for Skelling’s home address.
"One more question," Isla said, loud enough for the speaker to pick up. "Raymond Palmer. What can you tell me about him?"
"Ray? He’s our local history consultant. Brought on to advise on the exhibit narratives—the interpretive text, the historical context for each gallery. Soft-spoken guy, early fifties, very knowledgeable. Keeps to himself mostly, but always pleasant. Been with the project about eight months."
"Does he have a background in genealogy? Family history? Anything related to ancestry or heritage?"
Another pause, longer this time. "Actually—yeah. He mentioned once that he did genealogical research on the side. Said he’d helped families trace their roots, that kind of thing. I didn’t think much of it. It fit with the history work."
It fit with everything. Isla looked at Vaughn across the desk.
The detective’s brown eyes held the same cold recognition that was settling into Isla’s chest—the feeling of a picture snapping into focus, the relief and the dread arriving simultaneously because the answer was always worse when it had a name.
"We need to get to Skelling’s house," Isla said. "Now."