Former Cape Cod Rowing Club coach arrested in New York City after investigation into alleged statutory rape of a child

Guy Monseair
Barnstable Police/CWN

HYANNIS – From Barnstable Police:During October 2026, members of the Barnstable Police Department Detective Division received information regarding allegations of sexual assault and rape involving Guy Monseair (DOB: 05/13/1969) stemming from his time as a rowing coach with several rowing clubs on Cape Cod.

As a result of the ongoing investigation, detectives learned that Monseair was residing in the Bronx, New York, where he was coaching at another rowing club. On November 4, 2026, a Barnstable Police detective applied for and was granted an arrest warrant for Monseair through Barnstable District Court.

On November 5, 2026, working in coordination with the New York City Police Department (NYPD), Monseair was taken into custody in the Bronx by members of the NYPD and the HSI Human Trafficking Task Force.
The Barnstable Police Department would like to thank the NYPD, Homeland Security Investigations (HSI) Boston, and HSI New York for their assistance in this investigation.

Pending extradition to Massachusetts, Monseair is charged with:
• Four (4) counts of Aggravated Statutory Rape of a Child
• One (1) count of Indecent Assault and Battery on a Child Under 14

This investigation remains active and ongoing. Anyone with information related to this case is encouraged to contact:
• Detective Dennis Reddy at [email protected]
• Detective Catarina Parache at [email protected]

This case will be prosecuted by the Cape & Islands District Attorney’s Office.

As with all criminal defendants, the accused is presumed innocent unless and until proven guilty in a court of law.

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