John A. Fadden, 62, was reported missing from the University of British Columbia campus in Vancouver after a last confirmed sighting on September 21, 2011. He had lived at the university for about seven years and was known to have a brain injury, a vulnerability noted by those concerned when he did not return.

Reports say he had gone missing on shorter occasions before, but those episodes were of brief duration; this absence proved unusually prolonged.

If anyone knew John, saw him on or after September 21, 2011, or has information about his whereabouts, please share what you remember.