Newly released autopsy and toxicology reports are shedding light on the heartbreaking deaths of a Utah mother and her 11-year-old daughter, who were found dead inside a Las Vegas hotel room following a family trip for a cheer competition.

Tawnia McGeehan, 34, and her daughter, Addilyn Smith, were discovered at the Rio Hotel and Casino in February after Smith’s father contacted police and requested a welfare check.

According to investigative records obtained by The Post, officers arriving at the room found handwritten notes that appeared to have been left by McGeehan. One note warned responders that there were two deceased people inside, including an 11-year-old child.

The newly released toxicology reports found several prescription medications in both mother and daughter.

Addilyn’s report listed quetiapine, gabapentin, lorazepam and diphenhydramine. McGeehan’s report contained those substances as well, along with additional prescription medications and cannabinoids.

Despite the presence of multiple substances, officials determined that the gunshot injuries were the cause of death for both mother and daughter, rather than the medications.

Investigators also documented prescription bottles, THC gummies and other items inside the hotel room. Additional handwritten notes reportedly indicated that Addilyn had been heavily medicated before her death and referenced the close relationship between mother and daughter.

The investigation also found that Addilyn’s phone had been deliberately left accessible, with photographs and videos of the young girl available on the device.

Authorities have said McGeehan appeared to have been experiencing significant emotional distress. Investigative records cited severe depression, previous suicidal thoughts and an ongoing custody dispute with her former husband.

McGeehan and her ex-husband, Brad Smith, had reportedly been involved in a custody dispute for years following their 2015 divorce. Court records previously reported by The Post showed that the dispute had continued over a lengthy period.

Addilyn was a member of Utah Xtreme Cheer, where teammates and coaches were left devastated by her death.

“No words do the situation justice,” the organization said in a statement. “She was so beyond loved, and she will always be a part of the UXC family.”

The newly released reports provide additional information about what investigators found inside the hotel room, but the tragedy continues to raise painful questions for those who knew the young cheerleader.

Addilyn’s family, teammates and community are now left to remember an 11-year-old girl whose life was cut tragically short.