Investigators say repeated toxicology tests tied the 10-month-old girl’s death to morphine before her mother was arrested months later.

ANDERSON, S.C. — A South Carolina mother has been charged with homicide by child abuse after investigators said her 10-month-old daughter died from drug toxicity involving morphine and hydromorphone, a case that remained open for months while authorities waited for laboratory results and then repeated the testing to confirm what they had found.

Tynisha Lashae Jones, 34, was arrested Sept. 25 in connection with the death of Talayah Lucille Donaldson, who died Dec. 12, 2025, after emergency crews responded to a report of an unresponsive infant at a home on Howland Drive in Anderson County. Authorities said Jones was denied bond after her arrest. The charge is an allegation, and investigators have not publicly released a motive or explained how the morphine was allegedly administered. The case grew out of a death investigation that began with emergency treatment, a search of the residence, interviews and the collection of specimens for toxicology testing.

The emergency call came at about 11:44 a.m. on Dec. 12, according to local reporting based on information from the Anderson County Sheriff’s Office. First responders treated the baby at the residence and transported her to AnMed, where she died. Detectives from the sheriff’s office then interviewed several people connected to the case, including Jones, and obtained a search warrant for the home. At that point, authorities had not announced a criminal charge. Instead, investigators collected evidence and sent specimens for laboratory analysis while the death investigation remained open. That early sequence is important because the later accusation against Jones was not announced on the day Talayah died but followed months of testing and additional investigative work.

The first significant break came months later, when laboratory results showed a high level of morphine in Talayah’s blood. WYFF reported that the first results were returned in April. The Anderson County Coroner’s Office ultimately listed the cause of death as combined drug toxicity involving morphine and hydromorphone and classified the manner of death as homicide. A homicide ruling describes the manner of death determined by the coroner; it does not itself establish criminal guilt. Investigators still had to determine whether the evidence supported a charge against any particular person. Authorities said the toxicology result changed the direction of the investigation because morphine had not been administered to the child by local hospital or emergency medical personnel, as far as investigators knew.

Because the toxicology finding was unexpected and carried major consequences, authorities said the specimen was tested again. Anderson County Coroner Greg Shore said his office wanted to be certain that the positive result was accurate and that the drugs were a factor in the child’s death. The sample was run two more times at the South Carolina Law Enforcement Division laboratory, according to local reports, and officials said the repeat testing reached the same conclusion. That verification became a central part of the public account of the case. Sheriff’s Sgt. Kendall Cash said the amount of morphine detected was so high that it would have been enough for an adult to overdose, a comparison authorities used to describe the level found without releasing a specific concentration.

After the laboratory results were confirmed, detectives continued interviewing people and reviewed evidence and medical records. The sheriff’s office said that work led investigators to conclude that Jones was responsible for administering morphine to her daughter. Officials have not made public the full evidentiary basis for that conclusion, and the available reports do not describe a confession, an eyewitness account or a publicly released video. They also do not identify where the morphine came from. Those gaps matter because the criminal case will turn on evidence that can be presented in court, not simply on the coroner’s determination that the death was a homicide. Jones has been accused, not convicted, and the prosecution would have to prove the charge beyond a reasonable doubt.

Several key questions remain unanswered in the public record. Investigators have not said how the morphine was allegedly given to Talayah, when it was administered, why it was allegedly administered or how Jones allegedly obtained it. Shore told FOX Carolina that investigators did not yet have every answer about why the drug was in the infant’s system and said those issues would continue through the court process and the sheriff’s investigation. Authorities also have not publicly described whether hydromorphone was separately administered or how that substance figured into their theory of the case beyond the coroner’s finding that the death involved combined drug toxicity. No publicly verified court date was found in the reporting reviewed for this story.

The charge against Jones falls under South Carolina’s homicide-by-child-abuse law. At the time Talayah died, the statute covered the death of a child under 11 when the death occurred during child abuse or neglect under circumstances showing extreme indifference to human life, as well as cases in which a person knowingly aided or abetted another person in abuse or neglect that caused a child’s death. The law was amended in March 2026 to extend its age coverage to children under 18, but Talayah, at 10 months old, was within the statute’s age range before that change. The precise legal theory prosecutors will use against Jones has not been detailed in the public reports reviewed here.

Local reports used both “murder” and “homicide by child abuse” when describing the charge, while Law&Crime reported one count of homicide by child abuse. The distinction matters because news reports can compress charging language, and the exact filed count controls the case. The public material reviewed for this story does not establish that Jones faces multiple separate homicide counts. For that reason, this account uses homicide by child abuse as the core charge and does not assume additional counts that have not been independently verified. Jones’ mother told WYFF after the arrest that the extended family was devastated and surprised, adding another layer of grief to a case that began with the child’s death months earlier.

The case also reflects the difference between the date of a death and the date investigators believe they have enough evidence to make an arrest. Talayah died in December 2025, but Jones was not arrested until Sept. 25, 2026. During that interval, authorities waited for laboratory work, requested repeat testing and continued their investigation. The delay does not establish the strength or weakness of the eventual case; it shows that investigators relied heavily on toxicology and follow-up review before making an accusation. Shore said cases involving children are especially difficult for families, first responders and investigators. Talayah’s obituary said she was born Jan. 17, 2025, and described her short life as a source of joy to her family.

Authorities’ public statements also leave open how much of the eventual case will depend on scientific evidence and how much will depend on interviews or records. The sheriff’s office has said evidence and medical records pointed to Jones, but it has not itemized those materials. That means the toxicology result is the most visible piece of the case, not necessarily the only one. It also means claims about exactly what investigators can prove should wait for charging documents, hearings or trial evidence. The distinction is especially important in a child-death case, where the public impact of an accusation can arrive long before a jury evaluates the evidence.

Jones had been denied bond after her arrest, and the Anderson County Sheriff’s Office said the investigation was continuing. Authorities had not released a motive, a method of administration or a publicly confirmed next court date. Those unresolved points are likely to be central as the case moves forward, along with the laboratory results, medical records and other evidence investigators say linked Jones to the morphine found in her daughter’s blood. Until those issues are tested in court, the charge remains an allegation.

Author note: Last updated November 9, 2026.