Rachel Jeantel is the key witness for the prosecution in George Zimmerman's trial. She is the last person to have spoken with Trayvon Martin before he was killed. She is 19 years old, she is not media trained, and she's still shaken up and wracked by guilt because of her friend's death.
In short, she's a black teenager going through something extraordinarily difficult in a very public sphere, in front of a predominantly white jury. According to the Internet, though, she's "hideous," "dumber than a box of rocks," "an embarrassment," and a "thug."