A suspect stabbed five people on a university campus in central California Wednesday morning before police shot and killed him, authorities said Wednesday. Two of the victims attacked at the University of California, Merced, were taken by helicopter to hospitals for treatment, spokeswoman Lorena Anderson said. The three other victims were treated locally, she said. Student Alex Lopez was heading to his class, when he realized something was wrong on campus. "I was listening to a podcast, and there was a break in talking, and I just hear a gunshot," he said.