Federal and local investigators on the scene tonight trying to determine the cause of the crash, which is the deadliest in california in years. It happened in Desert Hot Springs on one of southern californias most traveled freeways. Tonight we are learning most passengers were jolted away by screams and the grinding of the metal on metal. Kelly wright has the details. More than a dozen people are dead and at least 30 others are injured after a tour bus on a trip to a casino crashes into the back of the semitruck. On interstate 10 in california near palm springs early sunday morning. Authorities say that the bus is traveling in a high rate of speed compared to the slow moving traffic. The speed of the bus was so significant that when it hit the back of the big rig the trailer, it entered about 15 feet. You can so you can see the potential impact. With so many people injured, the paramedics were treating many of them at the scene. Patients were taken to three hospitals with one handling