joe s during a 3-hour standoff yesterday. a store manager was killed. officers exchanged gunfire with the suspect during the tense situation. witnesses said they had to scramble for cover. they were just doing their shopping. then i heard gunshots. and i didn t realize it was shots. and then i saw people just running toward the back of the store. so i knew something was wrong. they will were this took place in silver lake, a neighborhood in los angeles. i can t believe this happened at a t joe s. reporter: this investigation is far from being wrapped up. the trader joaps where this hostage situation happened is closed as investigators pete