stolen 1988 Cannondale SR800

At 10:50 AM, I locked my bicycle up at the bike racks in front of the glass double doors of 1 Maritime Plaza, on Clay St. cross of Front St. I locked it with aKryptonite U-Lock through the front wheel and frame, and secured the back wheel with a metal cable.At 4:15 PM, I returned to find that my U-lock had been twisted and unlocked. A large metal pole about 4.5 ft and 30 lbs was laying on scene, as was mybroken lock, cable and helmet.At 4:25 PM, I went upstairs to the security desk at 1 Maritime Plaza. The guards were helpful and played back the security cam footage which showed mybike being stolen by a light-skinned male, balding/very short hair, about 5'10", 170 lbs, wearing black baseball cap, blue and white long sleeve sports shirt,long blue jeans. The incident occurred at around 3:45-3:55 PM. The suspect then rode off on Clay in the direction of Davis St.