Quick facts and lede
Police in Enfield, Connecticut, say toxicology testing detected a lethal concentration of diphenhydramine in 12-year-old Eve Rogers, who was found dead at home on March 18. The finding — which officials say expanded an active criminal probe — comes as detectives seek digital and purchase records tied to the household. The diphenhydramine result is described in court filings and the medical-examiner report and remains under review.
Toxicology: diphenhydramine levels
According to the medical examiner’s report cited in court documents and local reporting, Rogers’ blood contained about 23,000 ng/ml of diphenhydramine (Benadryl) (medical examiner report; WFLA and court filings). By comparison, the documents cite lethal concentration benchmarks of roughly 4,390 ng/ml for children and about 14,720 ng/ml for adults (WFLA and court filings).
Investigators told detectives that reaching the concentration found in Rogers’ system would require an extraordinarily large volume of liquid diphenhydramine — on the order of 1.8 liters, per statements in the warrants and medical-examiner analysis (medical examiner report; court filings). Officials have emphasized those estimates are part of an ongoing toxicology review and that exact pathways to such levels are not yet determined.
The toxicology also detected fluoxetine (Prozac) in the girl’s system, a medication not listed among prescriptions in initial records, per the search warrants cited in reporting. Authorities say they are continuing to analyze all forensic findings and to reconcile them with other evidence gathered during the probe.
Evidence investigators are seeking
Court filings show detectives have sought warrants to obtain a range of digital and purchase records as they build timelines and attempt to corroborate statements. The warrants requested access to the stepfather’s Facebook and Snapchat accounts and the family’s CVS Caremark and Amazon accounts, among other records (court filings reported by WFLA).
Investigators told the court they are looking for messages, billing and transaction histories, and other account activity that could show what the child consumed and who had contact with her in the days and weeks before her death. Police say some of the searches have produced material while others remain pending or subject to legal review.
Criminal case so far
Authorities arrested 39-year-old Anthony Federline in April and charged him with first-degree sexual assault and risk of injury to a minor. He has pleaded not guilty to those counts, and the allegations are described in court records as alleged — the charges have not been proven in court.
Court documents indicate a sexual-assault kit was performed before the autopsy and that DNA testing on a swab identified Federline as one of the contributors cited in the warrants (court filings). Prosecutors have not filed criminal charges in connection with Rogers’ death; the death remains the subject of an active investigation by police and the medical examiner’s office.
Family statements and investigative gaps
According to the warrants, Rogers’ mother told detectives she placed Amazon orders for items including Sleep Aid capsules and a sexual device she said were for the child. Investigators reported they did not find dyes in the girl’s system that would match ingestion of Sleep Aid capsules, leaving some questions about the origin of the medications or substances detected (court filings reported by WFLA).
The mother also described finding inappropriate online conversations involving her daughter. Police reported they did not locate the exchanges she described in the accounts they were able to access. Federline acknowledged communicating with the girl on social platforms but denied the conversations were sexual in nature, according to the filings.
Officials stress gaps remain: not all records have been returned to investigators, forensic testing is ongoing, and some accounts or transactions cited by family members are still being verified. Because the inquiry is active, authorities caution against drawing firm conclusions until all evidence is examined.
What comes next in the probe
Detectives say the next steps include obtaining any remaining digital account data and purchase histories, completing toxicology confirmatory testing, and matching forensic results against the investigative timeline. Warrants are being used to collect messages, billing information and account activity that could help explain how the high diphenhydramine level occurred (court filings).
Prosecutors will consider any new evidence in the context of the existing sexual-assault charges. If forensic analysis or newly obtained records point to different explanations — accidental ingestion, another responsible party, or other circumstances — investigators say they will follow those leads and adjust the case accordingly.
Throughout the process, the presumption of innocence applies to anyone charged. Officials have not announced any criminal charges tied specifically to the death; the medical examiner’s final manner and cause determinations and any potential criminal referrals will be based on completed investigations and forensic reports.
Why this matters
The detection of very high diphenhydramine levels in a child raises complex forensic and legal questions: how a toxic dose could be administered or accessed, whether coingested substances altered effects, and what digital and transactional evidence can reveal about timing and intent. Those questions are central to both the medical-examiner review and the criminal investigation.
Reporting in this article is based on court documents and local news coverage of the case. For the specific figures cited above — the 23,000 ng/ml diphenhydramine result, the cited lethal concentration benchmarks, and the 1.8-liter estimate — see the medical-examiner report and related court filings as reported by WFLA and summarized in the linked coverage below (medical examiner report; WFLA and court filings).
Source and further reading: Fox News coverage and the court documents cited therein: https://www.foxnews.com/us/stepdad-accused-sex-assault-cops-widen-probe-girls-lethal-benadryl-ingredient-dose
Reporting note: This account preserves the reported forensic figures and the status of criminal charges as of publication; allegations of sexual assault are those set out in court filings and have not been proven at trial.
