[MartinSE]

I just watched the Chief of Police in Tulsa giving the timeline.

Less than 10 minutes after the 911 call, police were on the second floor of the Doctors office building where the shooting took place. The scene (2nd floor) was described as a complicate place for the officers and posed particular problems. THEY were yelling, "Tulsa Police". A minute later the shooter shoot himself.

Well trained, well disciplined. less than 10 minutes. Not a hour later some officers ignore orders and go in - like in Texas. Fast response is the top priority in training for these situations. And in Tulsa it worked.

BTW: Not that it matters. The shooter was not happy with the outcome of a surgery he had a week or so before, so on the 29th he purchase a semi-automatic hand gun (.40 Cal) and on the day of the shooting he purchase an AR-15 style weapon. 30 casings of 0.223 were found on the scene, and 8(? something like that) casing of .40 found on the scene. He left a letter saying he was going to kill the doctor and anyone that got into his way. It took him almost 40 rounds to accomplish his goal. I guess others ( like patients and doctors) got in his way.

EDITED to remove comment about facts that some found offensive. Facts are facts, unless you don't like them I guess.