BOONE, NC (WJHL) – Medical examiners have determined that an Appalachian State University student died of a drug overdose.

The Boone Police Department began investigating the death of 20-year-old John Dallas Bunch IV on September 25, 2015.

Police said they were called to a home on Yosef Drive in Boone after Bunch’s friends found him dead in his room.

Investigators believed Bunch died of an accidental drug overdose.

They said Tuesday an autopsy report confirmed their suspicions.

Medical examiners listed Bunch’s death as “Acetyl fentanyl and alprazolam toxicity.”

Boone Police say they have closed the case surrounding Bunch’s death.Copyright WJHL 2016. All Rights Reserved.