That whole thing was debunked yesterday. Those were strobe lights of some kind that were probably activated when the smoke alarms were triggered from the perp's ammunition smoking off.
A Freeper pointed out yesterday that those flashes could still be seen hours after the incident ended. That should have been a clue right there.
21 posted on 10/04/2017 10:24:27 AM PDT by Alberta's Child
("Tell them to stand!" -- President Trump, 9/23/2017)