Kieran Murphy, 58, a San Francisco mathematician, was last seen December 15, 2001, near Jack London Square and the Oakland Marina. He and his estranged wife, Ornaith Murphy, had been meeting that day to discuss divorce-related legal matters. Witnesses reported loud noises near Ornaith’s boat, the Sola III, that evening, though it was unclear if those sounds were gunshots.

Security footage recorded the Sola III leaving the marina the night of December 15. The boat was not equipped for long-distance sailing and reportedly had about a week’s worth of food onboard. The following day Ornaith was seen working on the boat and later phoned her niece saying she was in Berkeley. Neither Kieran, Ornaith, nor the sailboat have been found; neither person’s bank accounts or credit cards have been used since.

Theories include an accident at sea and a possible murder-suicide, but no concrete evidence has been reported to confirm any scenario. If anyone saw the Sola III after December 15, 2001, or has information about Kieran or Ornaith’s movements that week, please share what is known.