A “psychopath” art benefactor murdered beloved New York City artist Sabina Rosas — who was found dead in posh Hamptons spa — before shockingly shooting himself, her longtime love told The Post Wednesday.
Fashion designer Ryder Iwata said the suicide of Thomas Gannon, 56, likely forever deprived Rosas’ family and friends of answers of what happened inside a guest house at the $1,000-a-night Shou Sugi Ban House, where the 33-year-old artist was found murdered this week
