Instagram Sunday by the HBO series’ executive producer and showrunner Tom Fontana.“Goodnight, sweet prince/and flights of angels sing thee to they rest,” producer-screenwriter Fontana, 70, wrote along with a photo of the late actor. Adams had revealed he was battling cancer in December 2020 after sharing an Instagram post of himself in a hospital bed.Following the tragic announcement, Fontana and “Oz” star Dean Winters, 57, created a GoFundMe page to help cover the dramatist’s medical costs.