I looked into some stats and although tables vary slightly this what l found on a list of countries by highest violent deaths. OK not necessarily gun crime but Americans are always trying to make out that the UK had a higher proportion of knife crime because we don't have guns to protect ourselves with.
USA ranked 81st with 6.00 deaths per 100, 000 people
UK was 144th - 1.22 deaths per 100, 000
China was 166th with 0.73 deaths per 100, 000 .
The incident cited was a very rare anomaly in China. One such incident in many years . Not like the school shootings in USA of which many occur each year .
Jan from Tam