Retired NYPD detective Dennis Murphy, an advocate for the 9/11 Victim's Compensation Fund has passed away from 9/11 related cancer.

Last year, NY1 profiled Murphy, who spent his time volunteering to ensure 9/11 first responders receive the free monitoring and treatment they're entitled to under the federal government's World Trade Center Health Program.

His cancer was tied to his work at the main morgue on 30th Street and First Avenue in Manhattan, where he helped sort and identify the remains of the first responders killed in the 2001 terrorist attacks.

In July, President Trump signed the September 11th Victim Compensation Fund act into law, extending first responders' deadline to file a claim to October first, 2090.