Ten members of a drug ring operating out of Cobb County are headed to prison on federal, narcotic, firearms and immigration-related charges, U.S. Attorney Sally Quillian Yates office announced late Wednesday.

The case began to unfold in February 2012, when law enforcement agents learned that Nemias Cintora-Gonzalez, 30, of Smyrna, planned to rough up a fellow drug dealer who owed him $2,700 for drugs in front of four other people.

While investigating that scheme, law enforcement officials said they witnessed another man, Edgar Cintora-Gonzalez, transferring two large bags from one car to another. Later that night, they executed a search warrant, resulting in the seizure of an assortment of guns, drugs, $11,000 in cash and two bullet-proof vests, among other items.

Ten arrests followed. Eight of the suspects pleaded guilty, and two others were convicted at trial.

Nemias Cintora-Gonzalez received the longest sentence — 29 years, 4 months in prison.

“Multiple agencies working effectively together dismantled a drug trafficking organization and removed their poisonous drugs, dangerous weapons, and counterfeit money from our streets,” Yates said. “Now, these defendants have traded their contraband for a combined 141 years, 4 months in federal prison.”