Richard Slayman, the world’s first recipient of a transplanted, genetically engineered pig kidney, has passed away. Slayman received the transplant during surgery at the Massachusetts General Hospital on March 16, receiving a pig kidney with 69 genomic edits. According to WCVB5, the 62-year-old said that he was leaving the hospital, “with one of the cleanest bill of health I’ve had in a long time.” In a statement, Massachusetts General Hospital said it has no indication Slayman’s death was the result of his recipient transplant. “The Mass General transplant team is deeply saddened at the sudden passing of Mr. Rick Slayman,” the MGH statement reads. “Mr. Slayman will forever be seen as a beacon of hope to countless transplant patients worldwide and we are deeply grateful for his trust and willingness to advance the field of xenotransplantation. We offer our heartfelt condolences to Mr. Slayman’s family and loved ones as they remember an extraordinary person whose generosity and kindness touched all who knew him.” » Related: N.Y. doctors perform first-of-its-kind gene-edited pig kidney transplant