Aside from surveillance, proper threat detection and crowd management tools must be enlisted to minimize threats at large-scale events.
Otavio Jordao da Silva, a 20-year-old referee at an amateur soccer game had allegedly stabbed a player, 31-year-old Josenir dos Santos Abreu, after he refused to leave the field and the confrontation became physical. Abreu died on the way to the hospital and Silva met his fateful end when angry spectators stormed the field, then mercilessly stoned and decapitated the young referee. This gruesome and violent double murder during the recent Confederations Cup in Brazil, reported by The Guardian, is an example of a security provider's worst nightmare. No one had expected this to happen. Neither was it clear why the referee had a knife in his possession, or why the spectators were able to storm the field so easily with no intercept...