The New York Times. The cause of death was complications of COVID-19.Kantrowitz was “an early champion of gay rights and an indefatigable campaigner for fairer treatment of gay people by the media,” the Times notes. Mass, a founder of Gay Men’s Health Crisis, called Kantrowitz “a true sage and champion.”He became vice president of the Gay Activists Alliance, one of the first groups founded in the wake of the Stonewall riots, in 1970.