Your SF weekend assaults roundup: A shooting at 5 p.m. on Saturday at Mission and 18th, followed 45 minutes later by a stabbing at Mission and 17th; a shooting in Visitacion Valley Saturday night/Sunday morning; a shooting at Broadway and Columbus outside Vietnam Restaurant; and a shooting outside 330 Ritch. Hey, if you hate alternative music of the late 80s that much, just say so! Good Samaritans at the North Berkeley BART stop -- people waiting on the platform Sunday interceded to stop an attempted robbery of a woman waiting for a Richmond-bound train. Four people were injured (one seriously), but they caught the would-be robber. The BART stop was then closed for three hours as the police came by for interviews, a weapons search, and to clean up the station. BART says maybe September 11 is not the best day to try anything funny on a transit system. And yesterday, an Alameda County jury returned two second-degree murder convictions in the Gwen Araujo case, and hung again on the third defendant. The jury rejected first-degree or the hate crime enhancements to the penalties. ...