Discription of Events: This jerk cut me off then slammed on his brakes, on the highway. Then sped off super fast. When I caught up to him to get his license plate he slammed on his brakes and came to a complete stop in the middle of the highway. I swerved around him and pulled up beside him and he proceeded to make a hand gesture like a gun and pointed at me and my sister with my 18 month old niece in the backseat luckily she was sleeping. I called the state police and reported him and I hope they catch his sorry ass.