Carlo de los Santos Ruiz, also known as “Julio,” was sentenced on July 21 to 60 months in federal prison and four years of supervised release for his role in a drug trafficking conspiracy, according to an announcement by U.S. Attorney Erin Creegan. Santos Ruiz, a 29-year-old citizen of the Dominican Republic, pleaded guilty in March to conspiracy to distribute and possess with intent to distribute at least 28 grams of crack cocaine and at least 40 grams of fentanyl.
According to court documents and statements made in court, law enforcement agencies began investigating a Massachusetts-based drug-trafficking organization operating in New Hampshire between July 2024 and June 2025. During this period, the organization trafficked crack cocaine and fentanyl. Prosecutors said Santos Ruiz led the group, managed dispatch lines used by buyers to order drugs, and personally distributed narcotics. He was arrested last June at his home in Dorchester, Massachusetts, along with a co-defendant. Authorities found more than 400 combined grams of crack cocaine and fentanyl inside a car parked near the residence.
“Granite Staters deserve safe, drug-free communities, and I’m proud of the hard work of our state and federal law enforcement partners on the front lines. By investigating and interdicting traffickers like this defendant, we can take dangerous drugs like crack cocaine and fentanyl off our streets,” said U.S. Attorney Creegan.
Ted E. Docks, Special Agent in Charge of the FBI’s Boston Division, said: “Today’s sentence reflects the seriousness of Carlo Santos Ruiz’s conduct and the harm he and his drug trafficking organization inflicted on communities in both New Hampshire and Massachusetts. By leading a drug-trafficking organization and personally distributing significant quantities of crack cocaine and fentanyl, he contributed directly to the dangers these drugs pose. The FBI will continue to work with our law enforcement partners to dismantle organizations that pump poison into our neighborhoods and ensure those involved with them are brought to justice.”
The investigation was led by the FBI’s Major Offender Task Force with assistance from Manchester Police Department and Drug Enforcement Administration agents. Assistant U.S. Attorney Mike Shannon prosecuted the case.
The U.S. Attorney’s Office for the District of New Hampshire is a federal law enforcement entity that functions under direction from the United States Attorney General; it handles prosecutions involving federal crimes as well as civil cases involving government interests; it serves through representation before federal courts; enhances community well-being by enforcing laws; builds alliances among local authorities, all according to its official website.