The Toxicology
Chapter 05 - The Toxicology
Detective Sarah Choi caught the case the following week, assigned once the hospital's mandatory reporting requirements for suspected child poisoning triggered a formal police referral, her manner careful and methodical in the specific way Daniel had come to associate, over one difficult week, with people who took his daughter's safety as seriously as he did.
"I want to walk through everything with you," Choi said, sitting across from Daniel and Nora in a small interview room, a folder of preliminary findings already open in front of her. "Starting with the diner incident, and then working backward through anything else that's concerned you this past year."
Daniel told her about the stomach complaints in spring, the rash in early summer, small things he'd dismissed at the time as ordinary childhood illness, things that took on a considerably more sinister shape now that he understood, courtesy of Nora's careful explanation, exactly what a slow, deniable pattern of poisoning could look like from the outside.
"I want copies of her pediatric records," Choi said, "every visit, every complaint, cross-referenced against your work travel schedule and Caroline's own calendar, if you're able to provide access to that."
"What are you looking for specifically," Daniel asked.
"Patterns," Choi said. "Whether Lily's illnesses cluster around specific times, whether they correlate with periods when Caroline had unsupervised access without other adults present, whether there's a financial or personal motive that might explain an escalating pattern rather than a single isolated incident."
Nora, present throughout the interview at Daniel's request, offered her own professional perspective when Choi asked directly about the toxicology findings.
"The specific compound identified is consistent with products found in most standard cleaning supplies," Nora said. "Which makes sourcing difficult to trace directly, but also means whoever administered it had access to something ordinary enough not to raise immediate suspicion if discovered in the home."
"Do you believe this was a first occurrence," Choi asked her directly, "or part of an established pattern."
Nora considered the question carefully, drawing on eleven years of experience she'd spent the past three years trying not to think about too directly.
"I believe the calculated, non-lethal dose suggests someone testing tolerance," she said. "That kind of testing rarely begins with the first documented incident. I'd expect, if this is the pattern I suspect it is, that earlier, smaller exposures exist somewhere in her medical history, likely misattributed to other causes."
Choi made careful notes, already formulating the shape of an investigation that would need to move considerably beyond the diner incident alone.
"I want a formal search warrant for the household," she told Daniel. "Cleaning products, any substance matching the toxicology profile, financial records establishing motive if one exists. I understand this is going to be difficult, given your current living situation."
"Do it," Daniel said, without hesitation. "Whatever you need. I want the truth, regardless of what it costs our household to get there."
"There's something else," Choi said, watching Daniel carefully. "Given the pattern we're investigating, I'd strongly recommend Lily not remain in unsupervised contact with Caroline until this investigation concludes. I understand the practical complications that creates, but her safety needs to take priority over convenience."
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Daniel nodded, already having reached the same conclusion himself the moment the toxicology report confirmed deliberate poisoning rather than accident.
"She's staying with my mother," he said. "Effective tonight. I should have made that decision the moment we left the hospital."
