Newly released body cam video shows a 15-year-old being handcuffed in Florida after posting on an online video game, under a fake name, that he vowed to bring his father's M-15 assault rifle to school and "kill 7 people at a minimum."  In the video, the boy's mother can be heard saying, "He's just a little boy, he didn't do anything wrong. Yes, he's 15, but he's still a little boy. And he's not one of the crazy people out there doing stuff."