A beloved Tongan athlete was killed in a fatal diving accident weeks away from his Olympic debut. JJ Rice, 18, died after diving off a boat into shallow water in Faleloa, Ha’apai, Saturday afternoon, Matangi Tonga Online and Sky News reported, citing JJ’s father, Darren Rice. He was found unresponsive on the ocean floor beneath the boat. Divers’ efforts to resuscitate him were unsuccessful, according to the outlets. “I’m in shock. I still can’t believe it, and it will take all of us who loved JJ so long to feel ok again,” his sister, Lily Rice, wrote on Facebook, confirming his death over the …