Dominican National Pleads Guilty to Fentanyl Conspiracy

fentanyl, heroin drugs

BOSTON – A Dominican national previously residing in Lawrence pleaded guilty yesterday to fentanyl distribution charges.

Luis Aybar-Guerrero, 24, pleaded guilty to one count of conspiring to distribute and to possess with intent to distribute 40 grams or more of fentanyl and one count of possession with intent to distribute 40 grams or more of fentanyl. U.S. District Court Judge Richard G. Stearns scheduled sentencing for Nov. 18, 2021. In August 2020, Aybar-Guerrero was indicted along with co-conspirator Guillermo Aybar-Guerrero.

According to charging documents, investigators conducted controlled purchases of fentanyl from Guillermo on June 10 and 17, 2020. On June 25, 2020, investigators set up a third controlled purchase, at which time Guillermo was arrested in possession of approximately 30 grams of suspected fentanyl. It is alleged that Guillermo retrieved these 30 grams of fentanyl from his brother, Luis. A search of Luis’ residence resulted in the seizure of an additional 263 grams of fentanyl as well as a scale, baggies and other drug-distribution paraphernalia.

Breaking News:  West Virginia, Maryland, and Washington, D.C. residents indicted on firearms and drug trafficking charges

A plea hearing for Guillermo scheduled for July 27, 2021.

The charges of conspiracy to distribute and to possess with intent to distribute 40 grams or more of fentanyl, and possession with intent to distribute of 40 grams or more of fentanyl provide for a mandatory minimum sentence of five years and a maximum of 40 years in prison, at least four years of supervised release and a fine of $5 million. Sentences are imposed by a federal district court judge based upon the U.S. Sentencing Guidelines and other statutory factors.

Acting United States Attorney Nathaniel R. Mendell and Brian D. Boyle, Special Agent in Charge of the Drug Enforcement Administration, New England Field Division made the announcement today. Assistant U.S. Attorney Lauren Graber of Mendell’s Narcotics and Money Laundering Unit is prosecuting the case. 

Breaking News:  Sioux Falls Man Sentenced for Possession of Child Pornography

The details contained in the indictment are allegations. The remaining defendant is presumed innocent unless and until proven guilty beyond a reasonable doubt in a court of law.

Victim Witness Assistance

Making sure victims of federal crimes are treated with compassion, fairness and respect.


Learn More


Information on the Boston Marathon bombing cases

Learn More