is still being investigated. pam: san francisco police are investigating a double homicide, two people were shot to death in the city s visitation valley neighborhood. the crime started with a huge fight. to large pools of blood are left where someone shot and killed two men in their early 20s. i was going to the store, as i was getting and heard gunshots. police say it started as a large fight between two groups, the fight escalated when someone pulled out a gun and opened fire. the daytime shooting happened at the intersection of mccarthy and bird avenues. it happened around 1:00 a.m.. police say it is too early to know whether the crime is gang-related but the task force is assisting in the investigation. police believe a lot of people saw the fight and shooting. we do not have much of a suspect description at this point. he lives a block away from the crime scene and says this is a common occurrence. he says he has had enough and he is moving out. it is insa