A Temecula man was sentenced on Friday to 19 years in federal prison for selling fentanyl to a 17-year-old boy who died of an overdose the next day, authorities announced.

Kyler Thomas Overby, 24, admitted to distributing fentanyl to the teenager on May 4, 2023, prosecutors said. The teen had told Overby he wanted to stop using drugs — but Overby continued selling to him anyway, according to court records.

In his plea agreement, Overby also admitted to possessing with intent to distribute multiple controlled substances, including 201 grams of fentanyl, nearly a kilogram of cocaine, MDMA and alprazolam — better known by its brand name, Xanax. Investigators also found three unserialized firearms, commonly known as “ghost guns,” in his possession, the Drug Enforcement Administration said in a news release.

“As court documents showed, the defendant preyed on other high school students,” said Anthony Chrysanthis, Deputy Special Agent in Charge of the DEA Los Angeles Field Division. “He had a pattern — simply looking for an easy sell.”

Over three dozen family members and friends of the victim were present in the courtroom at sentencing, DEA spokeswoman Rosa Valle-Lopez said.

“It was one of the most heart-wrenching sentencings I’ve attended,” she said.

Overby pleaded guilty in September 2024 to two federal charges: possession with intent to distribute fentanyl and possession of firearms in furtherance of a drug trafficking crime. In addition to the 19 years in prison, he received five years of supervised release, according to the DEA.