标签:shooting
Posted in 热点事件
California Shooting (Nov 15, 2017)
(Reuters) – A gunman carrying a semi-automatic weapon and two handguns opened fire at multiple…
Security in History: June 30, 1937 世界最古老的应急热线电话
2022-06-30
June 30, 1937 London, UK The world's old...
Professional Security Investigation Report: 15 golden keys
2019-08-22
*This article is written by Alex Xie, ex...