hefty hefty hefty. . >>> panic, confusion and frustration as the police continue to search for the persony say opened fire on a busy freeway in kentucky an hour outside of lexington, kentucky. the calls have been flooding in but the rugged terrain is making the search for the gunman all the more difficult. [ sirens ] >> several people shot. >> reporter: the first call about an active shooter came late saturday. >> the victims have been shot through the windshield. >> reporter: first responders race to interstate 75 and laurel county, 9 counties north of the city of london. >> i can not stress how chaotic it was when our units arrived. cars on the side of the road, emergency flashers, windows shot out. five people shot, including a person struck in the face. two more injured in car wrecks, they are all expected to be okay. >> do we have any idea where the shooter is at? >> reporter: at the scene they recovered an ar-15-style rifle, several magazines and a small suv registered to joseph couch, the police stopped traffic in both directions after terrified drivers told them it was not clear w