A gang member who helped manage a coalition of three rival street gangs in Northeast Los Angeles that were brought together by orders issued by a member of the Mexican Mafia pleaded guilty on Aug. 14 to federal charges.

The defendant, Santos Zepeda, also admitted to being a primary supplier of narcotics to the criminal enterprise. Zepeda, 33, of Glendale, is a senior member of the Frogtown gang, according to federal authorities. He pleaded guilty to conspiring to violate the federal Racketeer Influenced and Corrupt Organizations (RICO) Act and conspiring to traffic methamphetamine.

Zepeda was among 22 defendants named two years ago in a federal racketeering indictment that outlined how Mexican Mafia member Arnold Gonzales ordered the unification of three street gangs that were traditional rivals. The “peace treaty” imposed by Gonzales in 2010 brought together the Frogtown, Toonerville and Rascals gangs, which controlled the narcotics trade and other illegal activities in an area that ran along the Los Angeles River from Elysian Park to Burbank.

Because he was incarcerated in Pelican Bay State Prison after being convicted of murder, Gonzales appointed another Frogtown gang member, Jorge Grey, to be his emissary on the streets, according to the indictment. Zepeda served as Grey’s top lieutenant, provided narcotics to the racketeering enterprise and coordinated the collection of “taxes” imposed on street-level drug dealers.

United States District Judge Philip S. Gutierrez is scheduled to sentence Zapeda on Jan. 22. The defendant faces a mandatory minimum sentence of 10 years in federal prison and a statutory maximum penalty of life without parole.

The RICO indictment targeting the Gonzales organization is the result of Operation “Gig ‘em,” an investigation conducted by the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives’ Violent Crime Impact Team; the California Department of Corrections and Rehabilitation, Office of Correctional Safety, Special Service Unit; the Glendale Police Department and the Los Angeles Police Department. After Gonzales took control of the three gangs, he exercised his authority through Grey and criminal associates that such as Zepeda, according to the indictment. The organization generated revenue through extortion, specifically taxes on the gangs and others who distributed narcotics in the territory controlled by the criminal enterprise. Members of the racketeering conspiracy allegedly implemented Gonzales’ orders, disciplined those who attempted to violate the orders and gathered firearms that were used to enforce their authority.

The indictment details numerous transactions involving narcotics and firearms, and also contains charges related to two shootings allegedly committed against individuals who defied the rules imposed by Gonzales and his associates. Of the 22 defendants named in the indictment, 11 have pleaded guilty. The remaining 11 defendants, including Grey, are scheduled to go on trial on March 5.

The case is being prosecuted by Assistant United States Attorneys Carol Alexis Chen and Alexander B. Schwab, of the Organized Crime Drug Enforcement Task Force.