Crispin Asoy was 78 when he disappeared during a routine bus ride in Honolulu on November 27, 1983. He boarded an Oahu Transit Service bus with his brother and, after the brother got off at Bishop Street, Crispin did not follow. The brother expected him to step off but Crispin was never seen again.

Descriptions circulated early in the case note that Crispin was Asian, had graying hair and brown eyes, and a mole under his right nostril. A report was filed with the Honolulu Police Department on November 28, 1983, and the department has kept the case open. No trace of Crispin has been found since that bus ride.