Authorities say they have tracked the suspected gunman's movements before, during, and after the campus shooting that killed conservative activist Charlie Kirk and have recovered what they believe to be the weapon used. Officials said the suspect arrived near the Utah Valley University campus at 11:52 a.m., moved through stairwells to a rooftop, fired from a shooting position, then fled across the roof, jumped from the building, and escaped into a nearby neighborhood. Investigators canvassed the area, speaking to witnesses and viewing doorbell cameras. "We do have good video footage of this individual. We are not going to release that...