The alleged gunmen in the shooting, Sajid Akram, 50 and his son, Naveed Akram, 24, were from Bonnyrigg, a diverse, multilingual suburb miles from Sydney’s Bondi Beach.

Canadian police say Waleed Khan faces terrorism charges for allegedly conspiring with ISIS and committing hate crimes targeting Jewish community in Toronto.

More than a decade ago, a frenzied 5-day search for the Boston Marathon bombers left some lessons in its aftermath