The New York Times, Kramer's death was confirmed by his husband David Webster. Kramer died of pneumonia in Manhattan.Kramer was an important AIDS activist who help found two organizations: He was a co-founder—with Nathan Fain, Larry Mass, Paul Popham, Paul Rapoport and Edmund White—of Gay Men's Health Crisis and a founder AIDS Coalition to Unleash Power (ACT UP), that were vital in providing services to people living with AIDS and organizing protests that brought attention to the issues that.