Update: 2 Men Arrested in Connection with Harvard Medical School Explosion

Witnesses said the men lit a roman candle outside Harvard Medical School's Goldenson Building, and also placed a cherry bomb inside a locker.
Published: November 5, 2025

UPDATE – 11/5/25:

The FBI announced Tuesday the arrest of two Massachusetts men in connection with a weekend explosion at Harvard Medical School. Logan David Patterson, 18, and Dominick Frank Cardoza, 20, are accused of intentionally causing an explosion early Saturday morning on the fourth floor of the Goldenson Building, which houses labs and offices associated with the school’s neurobiology department, AP News reports.

No injuries were reported and school officials said the explosion caused no structural damage.

According to court documents, witnesses said the men lit a roman candle outside the building and placed a cherry bomb inside a locker. Surveillance footage showed the men walking toward the school. University police said an officer who responded to a fire alarm saw the pair running from the building. Witnesses also said the men were visiting nearby Wentworth College for Halloween activities, including parties at area schools, according to AP News.

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Patterson and Cardoza were arraigned in federal court on Tuesday on charges of conspiracy to damage by means of fire or an explosive.


ORIGINAL POST – 11/3/25:

BOSTON, Mass. — In the early hours of Saturday, a fire alarm activation led authorities to the Goldenson Building at Harvard Medical School, where an explosion occurred. The incident, now under investigation, is considered intentional, according to initial assessments by the Boston Fire Department Arson Unit.

Harvard Medical School Explosion: What Happened?

Just before 3 a.m., an officer from the Harvard University Police Department responded to the alarm at the medical school’s premises on Longwood Avenue, reports WCVB. Upon arrival, the officer witnessed two individuals fleeing the scene. Despite efforts to intercept them, the officer could neither identify nor detain the suspects.

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Investigations revealed that the explosion took place on the fourth floor of the building. Fortunately, no injuries were reported.

The Goldenson Biomedical Research Building, which houses science research departments, including the Department of Neurobiology, was thoroughly searched by the Boston Police Department for additional explosive devices. None were found, confirming the safety of the premises for continued operations.

Suspects Fled the Scene: Surveillance Images Released

In an effort to gather more information, police released grainy surveillance images depicting the two suspects with their faces obscured, reports CBS News. The public is urged to assist in identifying them. Anyone with information is encouraged to contact the Harvard University Police Department’s detective bureau at (617) 495-1796.

The incident has prompted a comprehensive investigation involving multiple law enforcement agencies.

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