Noted city community leader and social justice activist Jon Kest died at age 57 yesterday, just over a month after his daughter died during Hurricane Sandy.

Kest, who had been battling cancer and lived in Ditmas Park, was the executive director of New York Communities for Change, an organization dedicated to helping moderate-to-low-income city families fight for social and economic justice. His daughter, Jessie Streich-Kest, 24, and her friend Jacob Vogelman, 23, were both killed by a felled tree in Ditmas Park when they went for a walk as Sandy hit on Oct. 29. City leaders offered their condolences as they learned of Kest's death

"As an activist for those without a voice, as a strategist for making concrete change in neglected communities, and as a brilliant fighter for justice, Jon was second to none,” Representative Jerry Nadler said. “Everyone who worked with him knew well his toughness, dedication and compassion." Attorney General Eric Schneiderman described Kest as a "good friend" and a "truly selfless champion of social justice." And City Council speaker Christine Quinn posted a statement on her Facebook page:

Saddened by the loss of Jon Kest. He was a tireless advocate and a true champion for equality and justice. New Yorkers lost a passionate voice for those who so often are voiceless. My thoughts and prayers go out to his family and his colleagues at New York Communities for Change for continuing his fight.

Kest is survived by wife Fran Streich and son Jake.