Walk with me niggas,
I think people are confusing the different levels of Law Enforcement who were there.
So let's say for arguments sake that on that day, Trump had 50 Secret Service personnel members with him protecting him at the rally. Given the scale of the event, location, weather, etc, SS scopes the area and they plan on where they are going to be posted up at. On top of buildings, corners, in the crowd blending in etc...
So once SS established where all 50 of their personnel will be posted, they have to coordinate with the local law enforcement on covering the remaining portions of the area to make the event secure to the level that it needs to be. The local law enforcement officers (LEOs) that day would include the city of Bulter police, the county that Butler is in police which likely includes Sheriffs, Pennsylvania State police officers, State Troopers, a local SWAT team made up of officers from surrounding cities and counties, US Marshalls for that area, potential private security firms that were hired.
So now that we know who is protecting the event, Secret Service and a combination and LEOs from that area, it's time for everyone to prep for the event. Think about how you would see before cops do a raid when they are posted up not too far away from where they will be raiding. Usually the LEOs doing the raid will meet up in a big parking lot or something and go over their final gameplan before they roll up and do the raid. Well in this case, the LEOs used the very building that the shooter (Thomas Matthew Crooks) was eventually posted up at.
So fast forward to the rally. While the rally is ongoing, you can see the snipers on the roof right behind Trump. Now people are rightfully asking why there were no snipers on the roof that Crooks was on. A simple answer is that Secret Service did not have the man power to man that building with a sniper that day. So if there was going to be a sniper posted up on that building that Crooks was on, that sniper would have had to have been provided by one of the LEOs who were also there to assist the Secret Service. So obviously the entirety of Secret Service and LEOs were stretched thin that day which is a YUGE! security risk.
So when people are wondering why the people in the crowd are pointing out Crooks on the building to LEOs and why they seemingly did not respond quick enough, it's because there was not a clear and coordinated communication effort on who and what personnel were going to secure that building. Also since that same building was used as a gathering and training point for the LEOs, you can see just how complacent they were. They quite literally did not secure their own shit.
There's no conspiracy on LEOs letting Crooks get on the building. If something happens, none of the LEOs can just take immediate action without first confirming the Who, What, When, Where, Why, and How first. So when people in the crowd flag down a cop and say that they see someone climbing on the building, that cop can't just start blasting Crooks and blow his head off. No. That cop would have to radio and communicate and coordinate on that situation to confirm the WWWWWH, with other LEOs and the Secret Service. For all we know, the cops that were flagged down by the people in the crowd could've thought that Crooks was an LEO or some type of security personnel. They obviously didn't know who he was.
Now all of that could've been avoided by Secret Service and the LEOs securing that building from the jump but like I said, they were complacent as fuck on that day. Sloppy and unorganized.
Also it's not like Crooks was on that building for 30 minutes. In the amount of time that people in the crowd started flagging the LEOs down to notify them of Crooks, those LEOs have to try to quickly get confirmation on WWWWWH. That is what allowed Crooks time to climb and set up. Since that building rooftop was not secured from the jump, Crooks was able to climb uninterrupted without an LEO intervening.
As for the cop that initially climbed the building and was confronted by Crooks and his rifle and retreated, there's multiple explanations for that. The first thing is that the cop that climbed the building does not understand the severity of the situation he is going into. He doesn't know that Crooks has a rifle ready to blow his head off while he's climbing a building. The other explanation that is completely plausible is that the cop was a Bitch. Simple as that. Most cops are bitches when shit gets real. We've seen this countless times in mass shootings.
All in all, you can clearly see how it does not take much to go wrong in the way of planning for an event like this to go horribly wrong.
They were not prepared. They were sloppy. They were unorganized. If not for a very (and I mean very) slight wind on that day or Trump's human instincts to slightly turn his head while that shot went off.................
Let's just say that people wouldn't be making jokes about how sloppy the shooter was and would instead be focusing on the real failure that day which was Secret Service and LEOs doing their most important job.