"They were just talking about it and Josh's friend, Noah, said if that dog goes in, man, I'm gonna have to jump in and get it, and it came towards them in a moment," Rob Bradbury, Joshua's father, told KHON.
When the dog jumped into the water, Bradbury jumped in, grabbed the dog and pushed it toward the shore before the rapidly moving waters swept him away, the Star-Advertiser of Honolulu reported.
Bradbury was located on the west bank of the stream shortly after 5 p.m., the newspaper reported. He was taken to a hospital, where he was pronounced dead.
"We're devastated," Rob Bradbury told KHON. "It's just a nightmare."
“He was a beautiful person. He was a big-hearted, beautiful person.”