Three people have reportedly been killed and 15 injured after a gunman attacked an annual food festival in Northern California. Police said that the gunman was shot dead after he began firing and a manhunt is underway for a possible second suspect. Shooter and the second suspect have not yet been identified. The Gilroy Garlic Festival was about to end for the weekend on Sunday evening when shots were fired. The annual garlic festival is a three-day celebration, featuring food, cooking competitions and music that attracts more than 100,000 people.