Screen shots taken from a surveilance camera video on Aug. 10, 2012 show an armed robbery in front of a bank in southwest China's Chongqing Municipality. One person was shot dead and two others were injured in an armed robbery in Chongqing Municipality Friday morning. Police have launched a manhunt for the serial killer believed to be behind the robbery. [Xinhua]

Policemen obtain evidence at the scene of an armed robbery in front of a bank in southwest China's Chongqing Municipality, Aug. 10, 2012. One person was shot dead and two others were injured in an armed robbery in Chongqing Municipality Friday morning. Police have launched a manhunt for the serial killer believed to be behind the robbery. [Xinhua]

Policemen obtain evidence at the scene of an armed robbery in front of a bank in southwest China's Chongqing Municipality, Aug. 10, 2012. One person was shot dead and two others were injured in an armed robbery in Chongqing Municipality Friday morning. Police have launched a manhunt for the serial killer believed to be behind the robbery. [Xinhua]

Policemen obtain evidence at the scene of an armed robbery in front of a bank in southwest China's Chongqing Municipality, Aug. 10, 2012. One person was shot dead and two others were injured in an armed robbery in Chongqing Municipality Friday morning. Police have launched a manhunt for the serial killer believed to be behind the robbery. [Xinhua]

Policemen investigate the scene of an armed robbery in front of a bank in southwest China's Chongqing Municipality, Aug. 10, 2012. One person was shot dead and two others were injured in an armed robbery in Chongqing Municipality Friday morning. Police have launched a manhunt for the serial killer believed to be behind the robbery. [Xinhua]