The only thing I have found is the audio of the radio traffic from the PD. They call for backup, tell backup not to go to Twin Peaks because shots are still being fired. They ask for EMS to stage nearby due to gunfire. They discuss a suspect armed with a handgun down, but crawling between vehicles and still shooting. There is some discussion about entering the restaurant from a specific side and evac'ing people inside in a safe direction. No calls about being engaged and firing, but if I was shooting I wouldn't make those calls, either.
That was what I ran across, just an audio. No video.
Radio chatter can be an odd thing. The day of the Ft. Hood shooting, I listened in from my office. They were tracking another person they believed to also be involved. Had him trapped, didn't sound like he was giving up, etc.
In Colorado and at other shooting scenes, sometimes they hear their own fire and think the crime is still in progress.
Frankly they may not always know what they are looking at or hearing. They take caution to not wind up in the middle of something still in progress.