@cbsnews: “I’m going to kill a lot of people” — this is what Joseph Couch allegedly said in a text message on Saturday less than half an hour before police believe he shot and wounded five people on I-75 in Kentucky, according to an arrest warrant obtained by CBS News. The suspected shooter is also believed to have purchased the Colt AR-15 rifle authorities believe was used in the shooting at a gun store — along with 1,000 rounds of ammunition — on the same day of the incident. #kentucky #londonky #laurelcounty