Police in a Chicago suburb are collecting videos and other evidence to send to the Illinois attorney general’s office after a car crash involving a U.S. Border Patrol vehicle led to a violent arrest caught on video showing an agent repeatedly punching a man in the head while pinned to the ground. Immigration agents arrested three people after a sedan collided with the rear of the U.S. Border Patrol vehicle around noon Friday in the city of Evanston. The episode drew a crowd of onlookers and