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Press Release

MS-13 member who stabbed a victim to death, attacked another murder victim with machete, participated in shooting homicide of third victim pleads guilty

For Immediate Release
U.S. Attorney's Office, Southern District of Ohio

COLUMBUS, Ohio – A local man pleaded guilty in federal court in Columbus last evening to participating in a racketeering conspiracy in Columbus on behalf of the transnational criminal organization MS-13.


In his plea, Pedro Alfonso Osorio-Flores, 41, of Columbus, accepts responsibility for his role in the mid-2015 murder of Carlos Serrano-Ramos, the November 2015 murder of 17-year-old high school student Wilson Villeda, and the December 2016 murder of Salvador Martinez-Diaz.


Parties involved in Osorio-Flores’ case have recommended a sentence of 40 to 45 years in prison.


The defendant, also known as “Smokey,” is one of 23 members and associates of MS-13 in Columbus charged in a February 2018 second superseding indictment. He is the nineteenth defendant to plead guilty.

The defendants are charged in a racketeering conspiracy, which includes five murders as well as attempted murder, extortion, money laundering, drug trafficking, assault, obstruction of justice, witness intimidation, weapons offenses and immigration-related violations.

According to court documents, in summer 2015, Osorio-Flores and other conspirators beat and stabbed Serrano-Ramos to death before placing his body in a shallow grave in the woods in Innis Park.

In the murder of Wilson Villeda, Osorio-Flores and others attacked and killed the victim with a machete and buried his body in a shallow grave near Serrano-Ramos’s remains in Innis Park.


In December 2016, Osorio-Flores surveilled murder victim Martinez-Diaz at the Resolute Athletic Complex before following him home. He provided location updates to fellow MS-13 members so that they could shoot and kill the victim upon his arrival home.


Osorio-Flores pleaded guilty to one count of conspiracy to commit racketeering.


David M. DeVillers, United States Attorney for the Southern District of Ohio; Chris Hoffman, Special Agent in Charge, Federal Bureau of Investigation (FBI), Cincinnati Division; Rebecca Adducci, Detroit Field Office Director, U.S. Immigration and Customs Enforcement (ICE) Enforcement and Removal Operations; Franklin County Sheriff Dallas Baldwin; and Columbus Police Chief Thomas Quinlan announced the guilty plea entered before U.S. District Judge Edmund A. Sargus, Jr.


Deputy Criminal Chief Brian J. Martinez and Assistant United States Attorney Noah R. Litton are representing the United States in this case.



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Updated September 24, 2020

Violent Crime