I am curious about the time line. Someone on here posted that it took the police 72 minutes to find the guy and neutralize him. The retired Las Vegas cop said ten minutes. Which was it?
From listening to the police audio, at around 30 minutes into the recording dispatch asked if anyone had heard any shooting recently. One of the cops who was pinned down somewhere said he'd heard nothing for about 15 minutes. Meanwhile, SWAT and other units were still evacuating the floor, getting into position, and making sure the suspect couldn't escape.
I don't know anything about when the suspect killed himself. Was there somebody in the hall or at his door who spooked him 10-15 minutes into the shooting, causing him to kill himself? Did he spontaneously shoot himself early on? Was he watching TV for the rest of the time until SWAT was about to enter, and only then shot himself? What's more certain is that, however long it took him to decide to kill himself, he'd stopped shooting outside after 10-15 minutes.
SWAT must have delayed about an hour from last known shots in order to improve their odds, since the active shooter wasn't active.