Store Thefts by Flash Mobs Organized on Social Media, Law Enforcement Says

A recent rash of thefts by fast-moving mobs at stores in the Bay Area and outside Minneapolis were organized on social media and committed by people who often didn’t know one another, according to law-enforcement officials investigating the incidents. Snapchat was among the social-media apps and messaging services used by thieves in the Bay Area, one of the law-enforcement officials said.