Conflicting info and changing accounts from the LEO side, but also misleading spin or flat BS from the Twitter blue check side (that is or heavily influences the media). I'm not excusing any response delays or decisions, but I'm also going to wait until the current investigation is concluded before condemning, because we still don't know the full story.
What appears to be one of the misleading spin is that LEO went in and just rescued their kids:
At least one of those who did was also rescued his wife (a teacher) and their classroom as part of an evac effort of that building involving at least 4 other police officers:
https://www.dailymail.co.uk/news/article-10858885/Hero-CBP-cop-rushed-Texas-massacre-school-shotgun-teacher-wife-texted-Help.html
Jacob Albarado, a border patrol agent, was off work on Tuesday and was at the barber's when he got a text from his wife Trisha Albarado saying: 'Help'
Trisha, mother to their three children - sons Zachary and Jordan, and daughter Jayda, teaches fourth grade maths and science at Robb Elementary School
Albarado leapt up from the barber's, grabbed the barber's shotgun, and drove straight to the school, where eight-year-old Jayda and her mother were inside
A tactical team was already readying to take the room where the gunman was barricaded, so Albarado began searching for his daughter and clearing rooms
Two officers provided cover, guns drawn, he said, and two others guided the children out on the sidewalk
Important to note that the school has 6 separate buildings.
So it appears that they did evacuate at least some of the buildings while they waited on the tac team to go after the classroom the killer was in (actually 2 rooms sharing an interior door?) Maybe all but the classroom the shooter was in. I would guess his wife texted him within 5 of the lockdown, after securing her classroom. The school is near the middle of a small town, he probably arrived within 10 minutes of getting the text. A few more minutes to confer, updated, and develop an evac plan. Could fit with the children seen evacuating 20 minutes after the shooting started.
Once police located the killer and assessed the overall situation, they could plan to evac buildings with portions not in the line of fire, and make plans for the other buildings.
A teacher in the building the killer shot up, down the hall from the classroom(s) he took over, says her classroom was evacuated 35 minutes after the shooting started. Unclear if they were one of the first or last evacuated.
https://www.nbcnews.com/news/us-news/teacher-uvalde-texas-describes-longest-35-minutes-life-rcna30571
Best as I can tell, this timeline seems pretty consistent with the info we have now:
https://www.bbc.com/news/world-us-canada-61604652?xtor=AL-72-[partner]-[bbc.news.twitter]-[headline]-[news]-[bizdev]-[isapi]&at_medium=custom7&at_custom3=%40BBCNorthAmerica&at_custom1=[post+type]&at_campaign=64&at_custom4=D7670908-DDA7-11EC-BF55-6BC14744363C&at_custom2=twitter
Other reports say that he first shot at people in front of the funeral home across the street from the school (to the NW of campus.) May be key to the slow responses. Did that 911 call mention the school? If not, did the dispatcher perhaps not connect the dots that the funeral home was next to the school? Because 14 minutes from the call to police arriving on the scene seems very long, if they new the school could be involved. Reports from various interviews, including of HS students, are that school lockdowns are common, maybe once or twice a week (because of the criteria for what nearby (or not so nearby) incidents can trigger them. 14 minutes police response doesn't seem consistent with that.
Nor does a 13 minute delay by the school before declaring a lockdown. Other reports say from 1130 to 1140 the killer was outside shooting the gun intermittently in that time and even shooting towards the school. You can see the funeral homes parking lot in the upper right corner of the pic above, very close to the parking lot and the building he entered (NW side of the NW building.) Did no one from the school hear those shots? Haven't seen any reports of school officials/teachers reacting before he started shooting inside the building. (Still fog of war in what we know.) If the timeline is true (still not certain) the school may have had up to 10 minutes to lock the doors, to start a lockdown before entry, but it didn't happen.
Or did he not shoot much outside the school? He apparently did enough for someone 2 houses down the street from the funeral home (to the east) to start filming from their upstairs window. That short clip doesn't show him shooting as he walks up to the door. Unclear
The police may have made mistakes in responding to clean up this incident, but at the moment it looks like the school and district could have prevented a lot of this. The police did arrive within 4 minutes of getting the distress call from school officials (and apparently some teachers, too.) Why were the doors not locked after he was shooting outside? Why were they not locked to begin with? Why was an armed school district officer not on site at that time of the morning?
NPR intentionally misleading readers/listeners by conflating school shootings with mass school shootings, to make it sound much more common than they actually are. Each one is terrible, but we need to keep perspective.
https://reason.com/2022/05/26/uvalde-texas-mass-shooting-statistics-gun-crimes-misleading/
There Have Been 13 Mass School Shootings Since 1966, Not 27 This Year
For many people, the Uvalde, Texas, mass shooting—which claimed the lives of at least 19 children and two adults—seemed all the more horrible after they learned it was the 27th school shooting so far this year. That fact makes it harder to view Uvalde as any kind of isolated incident.
An NPR article highlighting this statistic has been shared frequently on social media. The headline, "27 school shootings have taken place so far this year," probably gave many readers the impression that gun-related killings in schools have been especially high this year, even before Uvalde. Naturally, the prospect of 26 other previously unnoticed mass shooting events in schools should provoke alarm. It should also raise eyebrows.
The problem here is that three very differently defined terms are being used somewhat incautiously and interchangeably: school shooting, mass shooting, and mass school shooting. Uvalde was a mass school shooting; the 26 previous tragedies at schools this year were not.
The difference is significant. Education Week, which tracks all school shootings, defines them as incidents in which a person other than the suspect suffers a bullet wound on school property. Many of the 26 previous shootings involved disputes between students in parking lots, or after athletic events, and all of them resulted in one or zero deaths. These deaths are still incredibly tragic, of course. But they are fundamentally unlike what happened in Uvalde.
https://www.nationalreview.com/corner/statistics-matter-in-statistical-disputes/
...numbers aren’t everything, but they should inform our sense of proportion in nationwide policy-making. Some perspective on the size of the problem and the direction of the trend is always important. The Associated Press counts 169 deaths in 23 years. That’s a lot in absolute terms, especially when we’re discussing innocent schoolchildren. But it is also seven deaths per year, compared with 43 per year by lightning, 300 per year by toasters, 800 per year by bedsheets...
...As Dan implies, these numbers can sound callous. But now that figures such as Representative Eric Swalwell have begun making contrary claims on TV, they are important to note nevertheless. “Look at the statistics!” is an ugly and non-responsive thing to say to a grieving parent, but it is an entirely necessary thing to say to someone who is making a hard claim about generalized risk, as Swalwell most certainly is.
On MSNBC yesterday, Swalwell claimed that “it’s a lie to tell our children that they are safe at school.” But it’s not. It’s a lie to tell them otherwise. Government data show that around 54 million American children currently attend school (public and private), and that somewhere between 3.4 million and 4.6 million children enter those schools each year. If we use 4 million as a rough guide for the latter number, by my back-of-the-envelope math, this means that, over the last 23 years, 146 million children have been enrolled in America’s 131,000 schools at some point. That 110 people in K-12 schools (including teachers and other staff, but not including people at colleges, which the AP’s number does) have been murdered in that period is utterly appalling. But it does not indicate that our schools are “unsafe.” It indicates that we have an extremely specific problem with extremely rare attacks. In no other circumstance would we conclude that a risk factor of just over one in 1.3 million makes one “unsafe....”
Another example of dishonest media just reflexively trying to score political points immediately off of a terrible tragedy by starting false urban myths, this is a senior editor at the Washington Post. Second most influential paper in the country. This tweet is a flat out lie, easily refuted with just the tiny bit of research (isn't researching to confirm/deny what reporters are supposed to do? Isn't an editor supposed to catch such mistakes?) And yet the blue checked tweet still hasn't been taken down, a day later. So pardon me if I don't join the usual 3 dozen CR types (that have made 80% of the posts in these 2 DT Uvalde threads) in condemning all cops to hell before we get the full story.