How Miriam Carey’s U-turn at a White House checkpoint led to her death

How Miriam Carey’s U-turn at a White House checkpoint led to her death | The Washington Post
Do you remember Miriam Carey? 
Her remarkably public death at 34 mesmerized us for a couple of news cycles.
Then we moved on pretty quickly.
I had to look up her name when I first started puzzling over this case.
The main thing I remembered was that incredible video — the one showing the two-door black Infiniti surrounded by Secret Service officers with guns drawn near the Capitol Reflecting Pool.
The car looks trapped.
Suddenly the driver backs into a squad car and accelerates away.
There’s the sound of gunfire while tourists take cover on the West Lawn.
The Infiniti reappears, making a loop around a traffic circle, and proceeds up Constitution Avenue to what would be the fatal encounter outside the Hart Building.

What an afternoon. We were told that Carey “rammed” White House and Capitol “barriers.”
That she tried to breach two security perimeters.
That she had mental problems.

District Police Chief Cathy Lanier said federal officers acted “heroically.”
The House of Representatives offered a standing ovation.

It was easy to call this a tragedy and turn the page.

Except that some of what little we thought we knew hasn’t held up. 
The part about ramming White House barriers and trying to breach two security perimeters? 
Not exactly true.