Jason Momoa is one of those who mourn the loss of the Aquaman superfan Danny Sheehan.

On Sunday, August 8th, according to the obituary, Danny passed away at the age of 8 after a four-year battle with a rare brain tumor. The native of Marshfield, Massachusetts, is survived by his parents Daniel and Natalie, in addition to members of his extended family.

“Shortly after midnight, while he was in our arms, Danny took his last sweet little warm breaths and took off,” his parents shared on Facebook on Sunday. “An angel in heaven. Instead of here on earth. Surreal and utter heartbreak cannot even begin to describe this inner feeling. “

Jason Momoa offered his condolences in an Instagram post on August 9 and dedicated his next Aquaman film to the boy. “I just got this heartbreaking news,” wrote the 42-year-old actor. “All my aloha to this beautiful ohana love you, baby, rest in [peace] You will live in my heart I dedicate to you aquaman 2, little angel Aloha UNKO Aquaman. “