United States Drug Enforcement Administration

NEW HAVEN, Conn. - Marc H. Silverman, Acting United States Attorney for the District of Connecticut, announced that DONALD OGMAN, also known as “Mainey-O” and ”Manny O,” 43, of New Haven, pleaded guilty today before U.S. District Judge Vernon D. Oliver in Hartford to methamphetamine and cocaine distribution offenses.  A trial in this matter was scheduled to begin this morning.

According to court documents and statements made in court, Ogman has been a leader of the Grape Street Crips (GSC), a violent New Haven gang. In 2012, the FBI arrested Ogman for offenses related to his role in GSC, including drug trafficking.  He pleaded guilty to narcotics offenses and, on March 10, 2015, was sentenced to 188 months of imprisonment and five years of supervised release.  In August 2022, a federal judge granted Ogman’s motion for compassionate release, reduced Ogman’s sentence to time served, and he was released from prison. 

Ogman resumed his drug trafficking activity while on federal supervised release, distributing multi-colored pills containing methamphetamine in and around New Haven.  The investigation included surveillance, trash pulls, and controlled purchases of methamphetamine pills from Ogman in March and April 2024.

Ogman was arrested on May 9, 2024.  On that date, searches of his person and residence revealed additional quantities of methamphetamine, as well as crack cocaine.

Ogman pleaded guilty to one count of possession with intent to distribute, and distribution of, methamphetamine; three counts of possession with intent to distribute, and distribution of, 50 grams or more of methamphetamine; and one count of possession with intent to distribute 50 grams or more of methamphetamine and a quantity of cocaine.  

Judge Oliver scheduled sentencing for July 9.  Due to Ogman’s prior conviction for a serious drug felony, he faces a prison term of at least 10 years.  He also faces additional penalties for violating the conditions of his supervised release.

Ogman has been detained since his arrest.

This matter has been investigated by the DEA New Haven District Office (NHDO) Task Force, the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF), the New Haven Police Department and the Hamden Police Department.  The NHDO Task Force includes members from the DEA, U.S. Marshals Service, Internal Revenue Service – Criminal Investigation Division, Connecticut State Police and the New Haven, Waterbury, East Haven, Branford, West Haven, Ansonia, Meriden, Naugatuck, and Shelton Police Departments.

The case is being prosecuted by Assistant U.S. Attorneys Stephanie T. Levick and Nathan J. Guevremont through the Organized Crime Drug Enforcement Task Forces (OCDETF) Program.  OCDETF identifies, disrupts, and dismantles drug traffickers, money launderers, gangs, and transnational criminal organizations through a prosecutor-led and intelligence-driven approach that leverages the strengths of federal, state, and local law enforcement agencies. Additional information about the OCDETF Program can be found at https://www.justice.gov/OCDETF.