the shooter may have left the building. it's not clear if that is the case. i'm looking at the police cars are leaving and others are arriving. it's a developing situation. i'm joined here by lisa and erin who were on their way into nordstrom when this incident happened. what did you see and hear? >> we heard a few shots. we weren't sure what it was at first. everybody started running and we thought it was a joke. and the security started yelling. >> you are going in and seeing people running out. what are you thinking? >> i didn't know what was going on. i thought it was a joke at first. it was like five kids and then it was a huge crowd of people. >> and you realized it was for real. >> the mall cops were screaming shots fired and telling everyone run, run, run. >> could you see anyone? >> no. i just wanted to get out. >> just trying to get out. >> so what happened?