Shane Devon Tamura security guard at Las Vegas casino identified as 345 Park Ave shooting suspect in NYC’s Manhattan district who shot and killed four, including an officer, before killing himself as motive remains unknown.
A 27 year old ‘lone gunman’ who shot and killed four people, including a NYPD police officer before killing himself at a NYC midtown building, early Monday evening, worked as a security guard at a Las Vegas casino.
Shane Devon Tamura casually entered the 44 story building located at 345 Park Ave, between Lexington and Park ave on 52nd st just on 6.30 p.m, armed with an M-4 assault rifle equipped with a silencer.
Upon entering the lobby of the building, Tamura opened gunfire as workers were making their way home during Monday night’s evening commute.
NYC shooter targeted NFL but took wrong elevator to 33rd floor (as 4 fatalities are identified)
Blackstone employees hunker down
Tamura, worked as a security guard for a casino in Las Vegas, and had failed to check into work on Sunday, instead traveling across the country in his BMW vehicle to make it to NYC late Monday afternoon, according to the nypost.
In the midst of the ongoing shooting, photos emerged (yet to be verified) on social media showing Blackstone employees inside 345 Park Avenue barricading their office door with furniture as Tamura was rampaging through the Midtown building.
Workers in business attire were seen piling couches up against their office door — with the towering furniture reaching the ceiling.
Workers even appeared to be pulling apart their desks in an attempt to add more furniture onto the barricade.
Park Ave shooter had suicide note, blaming NFL for head trauma and mental illness
This is how the employees in the Blackstone building barricaded themselves inside their offices while the shooter was active. pic.twitter.com/M7pMyWP9zJ
— Spencer Hakimian (@SpencerHakimian) July 29, 2025
🚨BREAKING: Authorities have released a photo of NYC shooter Shane Tamura. pic.twitter.com/2OphVbsXwH
— Benny Johnson (@bennyjohnson) July 29, 2025
Park Ave shooter had mental health history
Tamura was a stand-out running back at a California high school, according to an old interview he did with a local news outlet (see immediately below).
According to internet sleuths, Tamura was a high school and college standout at Golden Valley High School and Granada Hills in California.
Tamura who may have harbored NFL hopes, only to end in despair, may have been prompted to attack the NFL headquarters on 345 Park Avenue in midtown Manhattan. Other offices at the ritzy address included, BlackRock, the offices of Deutsche Bank, JP Morgan and Consulate General of Ireland.
NYPD Commissioner Jessica Tisch confirmed that the ‘lone shooter has been neutralized.’ Authorities said the attacker acted alone and is now deceased
NYPD will provide an update to the public at a 10 p.m. press conference.
Is this him? SHANE D TAMURA pic.twitter.com/SqXBM6BB9e
— Mark S (@munchymarks) July 29, 2025