BOISE, Idaho (KLIX) A Twin Falls trucker was involved in a pile-up on Interstate 84 in Boise on Wednesday. According to Idaho State Police Daniel Johnson, 45, of Twin Falls, was driving a semi-truck west on I-84 when he failed to slow for traffic that was stopped ahead of him. Police say his truck caused a chain reaction that involved six other cars. Several people had to be taken to the hospital. All involved had been wearing their seat belts. Three lanes of travel were blocked for two hours while crews worked to clear the scene.