Thai security forces have killed a shooter who gunned down 21 people and wounded dozens more in a brutal rampage at a shopping mall on Saturday. The gunman, identified by authorities as a soldier named Jakraphanth Thomma who was upset over a financial spat, was shot dead in the mall in northeastern Thailand after a 16-hour siege. Hundreds of terrified shoppers were evacuated from the mall amid chaos as security forces moved in to hunt down the gunman who had opened fire, leaving 21 dead and at least 42 wounded. “First I saw a woman run out from the mall hysterically,” one witness, named Nattaya, was quoted saying by the AP. “Then a motorcycle rider in front of her just ran and left his motorcycle there.” The gunman is said to have posted on his social media account throughout the attack, including a photo with the stolen weapons under which he wrote, “It is time to get excited.” He later asked his followers if he should surrender.