News reports out of NY say one person died, and several firefighters were injured, in a high-rise fire on Saturday in the Trump Tower on a floor that was classified as residential/apartment.
He was declared dead at Mt. Sinai-West Hospital.
Brassner, who records show bought his unit in 1996, was an art collector who spent time with Andy Warhol.
But Brassner had fallen on hard times of late, filing for bankruptcy in 2015.
The publication reports that at the time, Trump had called city officials to argue that sprinklers were too expensive - at $4 per square foot - to install throughout an entire building. He thanked the firefighters for their fearless work in containing the blaze, and then pointed out that the building was a "well built building".
The building was not evacuated, but some residents voluntarily left the building on their own.
President Donald Trump lobbied not to have sprinklers installed on the residential floors of his NY properties.
Multiple street closures slowed foot and auto traffic surrounding the tower, from East 55th Street to East 57th Street from Fifth Avenue to Madison Avenue, according to officials.
Early talks for the bill said all buildings be required to pay to install sprinklers - at the displeasure of many real estate moguls, including Trump.
"The upper floors, which are residence floors, are not sprinklered", he added.
Trump tweeted about the fire as it was happening, but made no mention of Brassner's death after it was announced.
"People feel safer with sprinklers", the Times quoted Trump as saying in 1999. Very confined (well-built building). The president lives there in the top three floors when he is in NY.
FDNY Commissioner Daniel Nigro said four firefighters suffered "non-life-threatening injuries" in the blaze - the cause of which is not yet known. Firemen (and women) did a great job.