Murder is apparently a spectator sport in China:
http://www.chinasmack.com/2013/videos/girl-stabbed-to-death-while-chinese-police-officers-stood-by.html
“Surveillance footage during the crime showed: While the girl was being choked by the killer and stabbed to death, two police officers stood right in front of them, yet dared not to go forward to stop it. Not until the perpetrator stabbed himself and fell to the ground did the two policemen go forward to subdue him”