Kirk Passmore was 32 when he disappeared while surfing on November 13, 2013, off the North Shore of Oahu in the Haleiwa area. He entered the water at a spot called Leftovers near 61-389 Kamehameha Highway during a high-surf warning with waves reported at 25 to 35 feet. Witnesses say he wiped out on an estimated 20-foot wave, lost his board, and did not have a flotation device.

Passmore was an experienced big-wave surfer who grew up in Carlsbad, California, surfed widely, and lived on the North Shore where he was part owner of Third Stone Surfboards and managed Banzai Sushi in Haleiwa. Other surfers and water-safety crews searched immediately; his board later washed ashore but he was not recovered. Authorities said they believe he drowned, yet he was never found.

Did anyone who surfed Leftovers that day or who knew Kirk on the North Shore have details that could add to the timeline of his final moments?