Three charged after 9-month-old overdoses on fentanyl, documents say

ST. GEORGE, Utah (ABC4) — Three Washington County residents have been arrested and charged after a 9-month-old had to be hospitalized for a fentanyl overdose.

The child’s mother, whom ABC4 is not identifying to protect her children’s identities, 31, has been charged with one count of endangerment of a child resulting in bodily injury, a second-degree felony, and three counts of endangerment of a child, a third-degree felony.

JD Montgomery, 39, and Angelique Sarah Horne, 55, have both been charged with obstruction of justice, a third-degree felony; two counts of possession of a controlled substance, a Class A misdemeanor; and use or possession of drug paraphernalia, a Class B misdemeanor. Horne is also facing four felony charges of endangerment of a child.

According to court documents, on July 25, 2025, paramedics were called to a medical episode at a residence in St. George. When emergency medical services (EMS) arrived, they determined that the 9-month-old infant had symptoms consistent with an opioid overdose and administered Narcan. EMS transported the infant to the hospital.

At the hospital, staff created a referral to the Utah Division of Child and Family Services , determining that the infant had, in fact, suffered from an opioid overdose. The mother was at the hospital with the 9-month-old, and police responded to speak about what had happened.

An officer with the St. George Police Department (SGPD) made contact with the mother, who reported that she and her four children, aged 10 and younger, had been living at the house for less than two months. She allegedly stated that she was aware that other residents in the home — one later identified as Horne — used illegal substances, including heroin and fentanyl.

The mother explained that she had been trying to clean up the residence because she was worried illegal substances might be scattered around the home and within the reach of her children. According to documents, the mother stated that when she found her infant had overdosed, the other residents encouraged her not to call 911.

A toxicology test on the 9-month-old indicated that the overdose was caused by fentanyl. The mother was arrested and transported to the Washington County Jail.

While detectives interviewed the mother at the hospital, SGPD officers responded to the residence where the overdose allegedly occurred. Police say that the officers were familiar with the address as belonging to a known drug dealer and her sister. The two had been arrested previously for distributing methamphetamine. The drug dealer was incarcerated, but her sister, Horne, was released and was living at the residence.

Officers were informed that Horne had been spotted at a nearby gas station and completed a traffic stop. A K9 alerted to narcotics in the vehicle, but police did not locate anything during a search.

During an interview with Horne, she allegedly explained that the mother had called her and told her the baby was sick. When Horne arrived at the residence, the mother stated that she “didn’t want to call because she didn’t want to get in trouble.” The two did eventually contact 911, Horne reportedly stated, and the ambulance took the mother and infant to the hospital.

According to court documents, Horne also told police that she, the mother, and a man named JD Montgomery had worked together to clean all of the drug paraphernalia out of the home after the 9-month-old was taken to the hospital. She also admitted that there was a trash can “full of drugs” in the home that the children could have accessed.

When Montgomery arrived back at the residence, officers detained him. A K9 checked on his vehicle and detected a drug odor. Officers searched the vehicle and located “numerous drug paraphernalia items in a trash bag.” Both Horne and Montgomery allegedly admitted that these items were removed from the home.

The mother, Horne, and Montgomery were all arrested and booked into the Washington County Jail. The mother and Horne are currently being held without bail, and Montgomery is being held on bail.