The three-alarm fire broke out just after 6:30 p.m Tuesday at 650 East 26th Street.
The body of Russel Mahan was found inside the severely damaged two-family home, authorities said.
No other injuries were reported.
There was no immediate indication of what may have caused the fire.
Various agencies united to investigate: the Paterson police and fire departments and the Passaic County prosecutor’s and sheriff’s offices.
Michael Jannicelli for DAILY VOICE
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