The east side of SOMA is a lot quieter than the west side. Main Street is pretty tame. This did happen late at night... I would expect the victim and the ass

The east side of SOMA is a lot quieter than the west side. Main Street is pretty tame. This did happen late at night... I would expect the victim and the assailant were the only two people around. Or close to that. It's pretty damn quiet in that part. IIRC there are ~two apartment/condo buildings on that block and that's it.