had middle of the street. we have just learned officers were here because they are investigating a triple homicide that happened in south san francisco in 2010. residents in petaluma can t believe investigators ended up here and that so many officers descended on to this street. federal agents cut a hole through the garage door in this house and stormed in around 4:00 this morning. they were with gunfire and three of them were shot. they are expected to survive. the violence woke up and terrified the neighborhood. you hear the gunshots go off and stop and then go off. it s not like it was just one or two shots. it was a gun battle, it was a little war in the street. reporter: the manager of the best western behind the house heard the gunshots and saw flashes and heard bangs of what appeared to be flash bang grenades tossed into the home. agents told the manager they had a situation involving shots fired and to go back inside. we stayed in the room. at that point we we