I'm absolutely certain that the prosecution never dreamed she would say anything like that.
She was the one that really set the scene....explicitly corroborating that Tray snuck up on George and took the first punch.
I think her brain got stuck on "following"....and the prosecutor feeding her to make sure she used that word. Unfortunately, she made additional connections to the word in George's favor.
At the time of her testimony there was a thread or two with excerprts from Tweets and Facebook postings from punks and ghetto rats like her.
Messages were like; “(Bleep) - dat b—— done gone and f-— up the case. She so stupid. She iggernant. Ho ain’t doing us no favors...” and other similar type of observations.
They knew. Even though they are no better - no smarter than she is.... they knew enough to realize she blew the prosecutions case.