This time, Pritchard's reaction was immediate and unmistakable. His face went carefully blank, but Isla saw his pupils dilate slightly, saw the subtle shift in his breathing that suggested genuine surprise or shock. He set down his coffee mug with deliberate care.
"Linda Graves is dead?" His voice was level, but there was something underneath it—an emotion Isla couldn't quite identify. "When did this happen?"
"Two days after David Langford," Isla said, leaning forward slightly. "You knew her?"
"Years ago." Pritchard's fingers drummed once against the table before he caught himself and stilled them. "She evaluated me for a foster care application. It didn't work out."
The understatement was striking. Isla pulled out her phone, pretending to consult notes she'd already memorized. "According to the records, she recommended against your application. Cited concerns about your 'ideological rigidity' and 'clinical approach to human relationships.'"
"That's correct." Pritchard's voice had cooled by several degrees. "Her assessment was... reductive. She spent perhaps three hours total in my home and declared herself qualified to judge my capacity for nurturing children. I found her evaluation process to be superficial and biased toward conventional presentations of warmth rather than genuine capability to provide stable, intelligent guidance."
There it was—the resentment, carefully controlled but unmistakable. Linda Graves had blocked him from something he'd wanted, and he'd perceived her methods as flawed and unfair. Isla filed the reaction away, maintaining her professional neutrality.
"And David Langford?" she asked. "According to city records, you had a complaint filed against you by him about fourteen months ago. Something about interference during his maintenance work?"
Pritchard's expression soured. "Langford was incompetent and hostile. I was conducting a mandated psychological evaluation—standard procedure after multiple workplace complaints—and he treated the entire session as a personalattack. He refused to engage meaningfully with any of the assessment protocols, made dismissive comments about psychology being 'pseudoscience,' and seemed to view the evaluation as beneath him."
"Did you have other interactions with him?"
"Just that one evaluation session. But it was more than enough." Pritchard's clinical detachment had cracked slightly, revealing genuine distaste. "He treated me with open contempt from the moment he walked into my office. Made it clear he thought the entire process was a waste of his time, that he was being persecuted for 'just doing his job.' He had no capacity for self-reflection, no willingness to consider that his behavior might be problematic. The man was fundamentally resistant to any form of psychological insight."
Isla absorbed this, noting how Pritchard's language shifted when discussing the victims. With Graves, his criticism focused on her methods and conclusions. With Langford, it became more personal—attacking his character, his competence, his fundamental approach to his job. Both assessments suggested someone who'd thought deeply about these people, who'd cataloged their flaws and judged them wanting.
"Your research," Isla said, changing direction. "I've read some of your published papers. Particularly the ones about detecting psychological traits through physiological measurements."
Pritchard's demeanor changed immediately, the resentment and distaste replaced by something that looked almost like excitement. His gray eyes brightened behind his glasses, and he leaned forward with the enthusiasm of someone discussing their life's work.
"You're familiar with my autonomic response research?" He sounded pleased, almost eager. "Most law enforcementpersonnel I've spoken with dismiss it as pseudoscience without understanding the underlying methodology."
"I'm trying to understand it," Isla said carefully. "You argue that certain people have fundamental neurological differences that make them incapable of genuine empathy or prosocial behavior."
"Not incapable—limited." Pritchard was warming to the topic now, his hands moving in small, precise gestures. "The research shows that approximately three to five percent of the population has measurable deficits in the neural architecture responsible for emotional processing and moral reasoning. These aren't just personality differences or learned behaviors—they're structural variations in brain function that predispose certain individuals toward selfish, callous, and ultimately harmful actions."
"And you believe you can detect these individuals through your monitoring equipment," James said, his tone carefully neutral.
"I've demonstrated it repeatedly in controlled settings." Pritchard stood, moving toward the archway that led to his office. Isla watched him walk—his gait was steady but without particular strength or athleticism. He moved like someone who spent most of his time at a desk, not someone who regularly navigated dark, dangerous tunnel systems or had the physical capability to subdue unwilling victims.
He returned carrying a tablet, which he set on the table between them. The screen showed complex graphs and data visualizations that meant little to Isla without more context, but Pritchard navigated through them with practiced ease.
"This is from a study I conducted three years ago," he explained, pointing to clusters of data points. "These subjects—" he indicated one cluster "—scored high on standard empathy assessments and demonstrated consistent prosocial behavior in controlled scenarios. Their physiological responses showedexpected patterns of emotional resonance when exposed to others' distress."
He swiped to another visualization. "But these subjects—" a different cluster, visibly separated from the first "—scored low on empathy measures and showed antisocial tendencies in behavioral tests. Their physiological responses were markedly different. Reduced heart rate variability when witnessing distress, minimal skin conductance changes, pupils that dilated in response to others' pain rather than constricting. Patterns that suggest not just reduced empathy, but potentially even pleasure in others' suffering."
Isla studied the graphs, her unease growing. The science might be questionable, but Pritchard's conviction was absolute. He genuinely believed he could identify defective human beings through biological measurements, could detect moral corruption beneath social masks.
"These people with 'empathy deficits,'" she said carefully. "What do you think should be done about them?"
Pritchard's enthusiasm dimmed slightly, and he pulled the tablet back toward himself. "That's a complex ethical question. In an ideal world, early identification would allow for targeted intervention—therapy, education, social support to help compensate for their neurological limitations. But realistically?" He set down the tablet. "Many of these individuals are fundamentally unreachable. They learn to mimic empathy and prosocial behavior when it serves their interests, but underneath, they remain... defective."
"Defective," Isla repeated, the word tasting bitter. "That's the term you used in your paper. What does it mean, exactly?"
"It means their internal experience of the world doesn't match the external presentation they've learned to perform." Pritchard's clinical tone had returned, the excitement replaced by something colder. "They go through life pretending to careabout others, pretending to feel guilt or compassion or remorse, but it's all performance. Underneath, they're hollow. And worse, many of them occupy positions where they interact with vulnerable people—positions that give them power over others who need help."
The silence that followed felt heavy, charged with implication. Isla exchanged a glance with James, seeing her own thoughts reflected in his expression. They were listening to a worldview that could absolutely justify murder—identifying people deemed morally defective, declaring them unreachable and fundamentally corrupt, suggesting they shouldn't hold positions of authority over others.
But as compelling as Pritchard's ideology was as a motive, Isla couldn't shake the disconnect between the man sitting before them—thin-shouldered, with trembling hands and an academic's sedentary build—and the physical demands of the crimes they were investigating.
"Dr. Pritchard," Isla said, choosing her words carefully. "When you learned about David Langford's death, did you have any theories about what might have happened to him?"
