Police say a Wisconsin-based truck driver was looking at his cell phone for eight seconds before he slammed into the back of a car which had stopped at an intersection.  The Tuesday accident in Lake Elmo, Minnesota, left 54-year-old Robert Bursik of Amery dead.  Video from a camera mounted on his truck showed 28-year-old Samuel Wayne Hicks of Independence made no effort to hit his brakes before the impact.  He is charged with one count of criminal vehicular homicide.  Hicks’ big rig was going 63 miles-an-hour when it crumpled the car Bursik was driving.  The video showed Hicks holding his phone in his right hand as the accident happened.