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Cortland Today
By the People, for the People
Central NY Man Arrested After Shotgun Standoff with Police
Corey D. Marquis charged with multiple felonies and misdemeanors after barricading himself in a home in Cortland County.
Published on Mar. 5, 2026
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A 42-year-old man from Groton, New York was arrested early Thursday morning after a standoff with deputies from the Cortland County Sheriff's Office. Corey D. Marquis had allegedly attempted to burglarize a home while armed with a shotgun, leading to a multi-hour standoff before he ultimately surrendered to authorities.
Why it matters
Standoffs involving armed suspects can pose significant risks to public safety, requiring careful de-escalation tactics from law enforcement. This incident highlights the challenges police face in responding to reports of armed individuals in residential areas.
The details
According to the sheriff's department, deputies responded around 12:35 a.m. to a report of a man with a shotgun attempting to burglarize a home in the town of Marathon. Marquis barricaded himself inside the home, prompting deputies to close off the surrounding road. After several hours of attempted contact, Marquis surrendered to deputies around 6 a.m. He was charged with multiple felonies and misdemeanors, including second-degree criminal possession of a weapon, second-degree burglary, endangering the welfare of a child, second-degree menacing, and fourth-degree criminal mischief.
- Deputies responded to the home around 12:35 a.m. on Thursday, March 5, 2026.
- Marquis surrendered to deputies around 6 a.m. on Thursday, March 5, 2026.
The players
Corey D. Marquis
A 42-year-old man from Groton, New York who was arrested after a standoff with police in Cortland County.
Cortland County Sheriff's Office
The law enforcement agency that responded to the incident and arrested Marquis.
The takeaway
This incident underscores the importance of de-escalation tactics and crisis intervention training for law enforcement when responding to reports of armed individuals in residential areas. It also raises questions about mental health resources and support for individuals who may be experiencing a crisis.
