The messages had to be coming from people he knew, but the app’s design made it impossible for him to know who was behind it. The messages included sexual comments and taunts over specific incidents, such as the time he’d fainted in biology class at his Portland, Ore., school. The 16-year-old had been receiving anonymous messages for months, according to a federal lawsuit filed Monday in California, through a popular Snapchat app called Yolo. One of the last things that Carson Bride did before taking his own life was look to his phone for help.
