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Authorities: Weapons Arsenal Found In BMW After Surgeon Threatens Estranged Wife In Westchester

Police in Westchester arrested a well-known surgeon who lives on Long Island with a weapons cache after he was overheard threatening his estranged wife, investigators said.

Tuckahoe News Conference, Chief John Costanzo and Westchester County District Attorney Anthony A. Scarpino, Jr.

Photo Credit: Westchester District Attorney
Officials announcing the arrest of Matthew Bonanno in Tuckahoe.

Officials announcing the arrest of Matthew Bonanno in Tuckahoe.

Photo Credit: Westchester County District Attorney's Office
A plastic surgeon from Great Neck was busted with a weapons cache in his BMW.

A plastic surgeon from Great Neck was busted with a weapons cache in his BMW.

Photo Credit: Westchester County District Attorney's Office
A plastic surgeon from Great Neck was busted with a weapons cache in his BMW.

A plastic surgeon from Great Neck was busted with a weapons cache in his BMW.

Photo Credit: Westchester County District Attorney's Office

Great Neck resident Matthew Bonanno, 47, who practices in the upper East Side in Manhattan, was overheard threatening his wife, who lives in Tuckahoe, officials said. 

Police were contacted by acquaintances on Monday, Aug. 12, who overheard the threats against Bonanno's estranged wife and her family, and when they intervened, he was found with an illegal Glock and an arsenal in his BMW.

Officers responded to Growler’s Beer Bistro, where they found Bonanno, who was armed, prompting them to search his vehicle. 

A search of Bonanno’s vehicle led to the recovery of:

  • Five fully-loaded assault rifles with high-capacity magazines;
  • Three handguns;
  • 29 high-capacity loaded magazines;
  • More than 1,600 rounds of ammunition;
  • Stun gun;
  • Heavy ballistic body armor;
  • Ballistic helmet;
  • Handcuffs;
  • Full head cover face masks;
  • Multiple military-style knives;
  • Four brass knuckles;
  • Pepper spray fogger;
  • Scopes, binoculars and other paraphernalia. 

Investigators noted that they searched a residence of Bonnano’s in Mount Pleasant, where more weapons were recovered. Other weapons, including assault rifles, were also seized at his Long Island home.

Bonanno is currently being held without bail at the Westchester County Jail. He is scheduled to appear in court to respond to various weapons charges on Tuesday, Aug. 20.

This continues to be a developing story. Check back to Daily Voice for updates as more information.

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