←← This guy!

Stolen from the bike rack at the top of the BART stairs at 4th and Market, around 7pm. This bike lasted over three years, though, which is an all-time record since way back in the nineteen-hundreds. (Previously.) They didn't leave a broken lock behind, which is somewhat puzzling. It was a u-lock with one of the new-style flat keys with the dimples on them, whatever those are called.