Tonight, his wife held a vigil in Golden Gate Park to remind people that Jerry is still missing and to encourage people to keep looking for him.

Jerry Tang had suffered a stroke a few years back, and required daily seizure medication to function -- his family thinks he may be alive but unaware of his identity.

There will also be two concerts by blues artist Marcy Levy at Biscuits and Blues (401 Mason Street) next week, Dec. 8, in honor of Jerry. These shows are sponsored by the Squeaky Wheel tour, which is part of a missing-persons awareness group.

Picture from tonight's vigil by SFist Jim.