One of the four victims gunned down by crazed Manhattan mass shooter Shane Tamura has been identified as a Cornell University grad who worked for the management company that owned the Midtown skyscraper, sources told The Post.

Julia Hyman was gunned down when Tamura stormed the ritzy Park Avenue office tower where she worked on Monday evening, the sources said.

Hyman, a 2020 Cornell graduate, was shot when the gunman mistakenly took the elevator from the lobby to the 33rd-floor offices of Rudin Management, where she was an associate, according to the sources and her LinkedIn profile.

Cornell graduate Julia Hyman was killed in the mass shooting on Monday, July 28, 2025. JuliaHyman/linkedin

People stand near a glass window with a bullet hole at the scene of a deadly mass shooting in Manhattan. REUTERS

Investigators believe Tamura had been trying to target the NFL offices, which are located on the building’s lower floors.

One of the victims murdered by the crazed Manhattan gunman has been identified as a Cornell University grad who worked for the management company that owned the Midtown skyscraper, sources told The Post. Rudin

Three others were also killed, including Blackstone exec Wesley LePatner, a married mom of two; NYPD officer Didarul Islam, whose wife is due to soon give birth to their third child; and security guard, Aland Etienne.

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“The Rudin family and everyone at our company are devastated by yesterday’s senseless tragedy,” a Rudin spokesperson said in a statement.

“Our thoughts and prayers are with those injured and lost last night, including our cherished Rudin colleague, a brave New York City police officer, a beloved lobby security guard and an employee at a tenant firm.”

NYPD monitors the perimeter of 345 Park Ave. after the shooting. Robert Miller

“We are grateful to the NYPD, FBI, EMS and multiple other emergency responders for their swift and courageous action,” the spokesperson added.

“As New Yorkers, we stand shoulder to shoulder in the face of this hatred, we grieve with the families and loved ones of those lost, and we pray for the full recovery of those injured.”

The gunman, who drove from Las Vegas to attack the NFL HQ, ended his rampage by shooting himself, cops said.

Shane Devon Tamura walks into the building holding a rifle. Obtained by the NY Post

The crazed shooter left behind rambling notes found stashed in his wallet that claimed he suffered from CTE — the degenerative brain disease that’s been linked to concussions and other repeated head trauma common in contact sports like football.

In the writings, Tamura blamed football for his apparent struggle with CTE and begged for his brain to be studied in the wake of the massacre.

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“Please study brain for CTE. I’m sorry. The league knowingly concealed the dangers to our brains to maximize profits,” he wrote. “They failed us.”

People are emotional after a mass shooting in Midtown on Monday, July 28, 2025. Derek French/Shutterstock

He also name-checked Terry Long, the former Pittsburgh Steelers player who was diagnosed with CTE after downing antifreeze to kill himself 20 years ago.

“Terry Long, football gave me CTE and it caused me to drink a gallon of antifreeze,” Tamura wrote. “You can’t go against the NFL, they’ll squash you.”

Mayor Eric Adams confirmed Tuesday that the mentally ill shooter appeared to have been targeting NFL’s corporate headquarters, which has offices in the towering Park Avenue building.

How the shooting unfolded

  • Reports of the shooting at 345 Park Ave. start coming in around 6:28 p.m.
  • Shane Tamura, 27, is seen getting out of a black BMW between 51st and 52nd streets with an M4 rifle.
  • He enters the lobby and turns right, where he shoots police officer Didarul Islam, 36, dead.
  • Tamura guns down a woman cowering behind a pillar in the lobby, sprays more bullets and walks toward the elevator bank — where he shoots dead a security guard crouching at his desk.
  • One more man reports being shot and injured in the lobby. He was in critical but stable condition.
  • The gunman allows a woman to walk out of the elevators unharmed before heading up to the 33rd floor, where building owner Rudin Properties’ offices are located, “and begins to walk the floor, firing as he traveled.”
  • One man is shot and killed on that floor before Tamura shoots himself in the chest.
  • It’s unclear how long the mayhem lasted. Police Commissioner Jessica Tisch posted on X at 7:52 p.m.: “The scene has been contained and the lone shooter has been neutralized.”

“We’re still going through the suicide note to zero on in the exact reason but at this time it appears as if it’s something attached to his belief he experienced CTE from the NFL,” Adams said in interviews.

Despite suggesting he suffered from CTE from playing in the NFL, Tamura only played high school football in California.

Investigators are still probing an exact motive for the bloodshed.