New York authorities have apprehended a 33-year-old woman linked to the violent murder of a 52-year-old man near a yacht club on Long Island’s picturesque north shore.

Victor Panebianco, a 32-year-old male suspect, is currently detained in North Carolina. Officials anticipate his extradition to New York to face charges.

The Stony Brook Yacht Club’s parking area, typically a hub for kayak launches and wedding photography, has now become the backdrop for a serious crime investigation. Police claim that Kacy Corso, who resided in nearby Setauket, played a role in the stabbing death of Christopher Millwater from Selden.

According to a felony complaint filed by the Suffolk County District Attorney’s Office, Corso is accused of cornering Millwater’s vehicle in the parking lot to prevent his escape and then intentionally colliding her car with his.

As of November 16, 2025, several late-season boats can still be seen docked at the marina of the Stony Brook Yacht Club. (Photo by Michael Ruiz/Fox News Digital)

Together, Corso and Panebianco allegedly stabbed Millwater repeatedly, according to court documents, which describe her as Millwater’s ex.

The altercation began in the parking lot across from 21 Shore Road, used by visitors to a pair of marinas and also a restaurant and wedding venue, the Three Village Inn, about 60 miles east of New York City.

The yacht club itself is surrounded by cameras, with several affixed to each light pole, and sources tell Fox News Digital much of the violence was caught on video.

Corso pleaded not guilty in court in Central Islip Thursday morning on a charge of second-degree murder. Under New York law, that’s the charge for intentional murder. Judge Steven Weissbard ordered her held without bail. 

Christopher Millwater, pictured in an undated selfie taken in a mirror, was killed outside the Stony Brook Yacht Club. (Christopher Millwater/Facebook)

A July post from a Facebook account in Corso’s name appears to show she knew Millwater before his death and included a screenshot from Panebianco.

The same account also posted at least one other picture from the yacht club parking lot in July, taken from a space near the boat ramp, where fishermen can access the mouth of the channel from the dock. Millwater “liked” one of her posts from days earlier.

Court records show she racked up unrelated charges at another boat launch in the area earlier this year.

A number of late-season boats remain in the Stony Brook Yacht Club marina on Nov. 16, 2025. (Michael Ruiz/Fox News Digital)

On May 5, she was charged with illegally accessing the boat ramp parking lot in the neighboring town of Smithtown and with entering or remaining in a park or beach area after dark.

According to Millwater’s Facebook page, he was given an “all clear” in October following a battle with cancer.

His sister told the local TV station, News 12, that Stony Brook was his favorite place to go fishing.

Corso’s next hearing is scheduled for Nov. 24.