Four men are facing federal charges in connection with a deadly fentanyl and heroin distribution ring in Middle Tennessee.

The charges stem from two deadly drug overdoses that happened on March 21, 2018, in Columbia, TN.

Officials said both victims died from ingesting and overdosing on heroin and/or fentanyl.

According to the Department of Justice, the defendants conducted their drug deals at various public restrooms in Franklin, Cool Springs and Brentwood near Interstate 65.

Story Continues Below

All four suspects are charged with conspiracy to distribute and possess with intent to distribute fentanyl and heroin.

A federal grand jury in Nashville returned a nine-count indictment on Wednesday against the following suspects:

Juan Manuel Morales-Rodriguez, 39, of Tepic, Mexico Juan Samudio-Castro, 26, of Michoaacan, Mexico Austin Chase Sneed, 23, of Columbia, TN Jacob Allen Beaver, 22, of Columbia, TN

Morales-Rodriguez and Samudio-Castro are charged with an additional six counts of distributing heroin/fentanyl.

Sneed is charged with two additional counts of distributing heroin/fentanyl, while Beaver is charged with one additional count of distributing heroin/fentanyl.

Morales-Rodriguez is charged with aggravated illegal reentry.

If convicted, the defendants face a mandatory minimum of 20 years in prison.

Several agencies assisted with the investigation, including the Drug Enforcement Administration, the Columbia Police Dept, the Maury County Sheriff’s Office, the Metropolitan Nashville Police Department, the Williamson County Sheriff’s Office and the 21st Judicial District Attorney’s Office.

Copyright 2018 WSMV (Meredith Corporation). All rights reserved.