The explosion of gang violence in and around San Francisco's Visitacion Valley this summer—it has claimed seven lives and has the southeastern neighborhood on edge—stems not from feuding between rival factions, but from an internecine war that is tearing the gangs apart, the city's police chief said Wednesday.
"They were all friends not long ago—now they have turned on each other," San Francisco Police Chief Greg Suhr said, pointing to a string of shootings that has left four people dead since Saturday and earlier this summer killed three people.