Transcript for Man Rams Car into Walmart, Starts Clubbing Customers
at walmart, where an out-of-control driver pulled through the front of the store. Then he merged with a blunt instrument striking everyone in his path. Police are trying to figure out why this man sent people scrambling for their lives. A terrifying easter sunday for customers and workers at this walmart in san jose, california. When this oldsmobile cutlass cut through the front of the store. Careening 20 feet, coming to a stop on a beer display. I hear this big crash, like something big fell off the shelf, broke. My heart was beating the whole time. Reporter: The crash didn't stop the driver from completing his bizarre mission. He merged from the car with a blunt object and began clubbing everyone in his path. We found nine people injured, three of them were transported to local hospitals. Two were in critical condition. Reporter: The only thing that couldn't stop him, the bravery of some everyday citizens inside the store. The police didn't have to use force. It sound likes some of the onlookers might have used force to take him into custody. Reporter: The driver, arrested but not identified, began the wild ride by hitting two cars in the parking lot. He hit one car before me. He hit me. Reporter: He may have been going fastz as 40 miles an hour when he burst through the store. Broken glass. Flying debris. It was kchaotic. Reporter: The most seriously injured person, a cashier. Hit in the head with debris. Police believe drugs or alcohol could have been involved. Let's go to josh with the other top stories.
This transcript has been automatically generated and may not be 100% accurate.