“A real investigation would have involved a complete shutdown of everything within about a 350 to 400 yard radius of the center of the concert venue the night of the event whereupon thorough searches would have been conducted for anything that indicated another shooter in another location - or anything out of the ordinary...”
In theory, yes. But Impossible for LEO to have accomplished when they have thousands of people running for their lives. It would be so easy for the shooters to blend with the crowd. Easy for a shooter to have either headed upstairs and harbored in The Four Seasons Floors 35 and up.
It’s possible for a shooter to have escaped as a security or maintenance guy in uniform.
Oh I’m not arguing whether or not another shooter could have escaped. That much is obvious.
I’m arguing that LE should have known to treat an area 450 yards from the center of the field as a potential crime scene *after* the fact.
Go and look for evidence - even if they managed to police all their brass, there may still be evidence of another shooter.
To ignore the possibility that another shooter could have been there is an egregious error.