Still unconfirmed about assassination fail

Who was the shooter?

What caliber rifle was used by the shooter?

Did the shooter use optics on his rifle?

Why was no LEO on that building?

Why did LEO set up where they had blindspots?

Who's responsibility was it to secure that building/area?

How long were bystanders warning there was a guy with a gun?

What LEO first had eyes on the shooter and what was their responsive action?

Why was DJT not covered immediately when warnings about a gunman started being given?

Was there more than 1 shooter?

How was the shooter so hard to see before he shot DJT, but not after?

Who all shot the shooter, and from where?

What was the comms structure of the LEO there?

What were LEO rules of engagement?

What was the LEO chain of command?