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Victim of Fatal Beating by Sword-Wielding Maniac on NYC Subway Identified as Beloved Italian Churchgoer and Security Guard

October 9, 2025

Mugshot of a man alongside a formal event speaker, highlighting contrasting themes of crime and community engagement.

Mugshot of a young man with short hair and a mustache, displaying a serious expression against a neutral background.
NYC subway killer David Mazariegos

The 64-year-old man who was beaten to death on a New York City subway on Tuesday by a sword-wielding monster with at least 33 prior arrests has been identified as Nicola Tanzi.

Tanzi was a beloved Italian churchgoer and a security guard.

David Mazariegos, 25, beat Tanzi, a complete stranger, to death on the subway in downtown Brooklyn because he didn’t like the way the man looked at him.

Men in formal attire carrying a decorative religious statue during a parade, showcasing cultural traditions and community involvement.
NYC Subway fatal beating victim Nicola Tanzi, 64

According to reports, Mazariegos became angry after Tanzi held the subway doors open for him. The act of kindness set him off, and he brutally beat Tanzi for more than 10 minutes.

Mazariegos repeatedly punched Tanzi in the face and stomped on his head more than a dozen times, according to The New York Post.

The attacker stole Tanzi’s wallet and took off on foot. He was later arrested in Times Square with a samurai sword.

Mazariegos did not have his sword drawn. It was attached to his backpack.

Tanzi was rushed to New York-Presbyterian Hospital, Brooklyn Methodist, where he was pronounced dead.

The New York Post reported:

A warmhearted security guard — who was a beloved fixture in Brooklyn’s tight-knit Italian community — was identified as the victim randomly beaten to death, allegedly by a sadistic madman, outside a subway station this week, The Post has learned.

The senseless death of Nicola Tanzi, 64, on Tuesday quickly sent waves of sorrow among his friends and fellow congregants at the two Roman Catholic churches he devoutly attended.

“Nicola is for all purposes, one of the most congenial, friendly individuals that you could ever meet,” said Anthony Mammoliti, deacon at St. Athanasius-St. Dominic’s Parish in Bensonhurst.

“If you were his friend, that was something very, very powerful. He’ll do anything for his friends.”

Tanzi originally hailed from Italy and settled in New York City roughly two decades ago, his friends said.

He worked as a security guard near the MetroTech station where he allegedly held a door open for David Mazariegos, 25, a deranged crook with a lengthy rap sheet.

The post Victim of Fatal Beating by Sword-Wielding Maniac on NYC Subway Identified as Beloved Italian Churchgoer and Security Guard appeared first on The Gateway Pundit.