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As young gunmen turn toward new social networks, old safeguards fail

Private messaging apps are harder to scan for warning signs of potential violence, experts say

Updated May 26, 2022 at 2:02 p.m. EDT|Published May 26, 2022 at 12:12 p.m. EDT
Community members attend a vigil at the Uvalde County Fairplex in Uvalde, Tex., on May 25. (Sergio Flores for The Washington Post)
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Before two 18-year-old men allegedly killed 31 people in separate shootings over the past two weeks, they turned to a variety of social media apps to share troubling private messages.

Both men — one killed by authorities in Uvalde, Tex., and the other charged in the Buffalo shooting — used a combination of disappearing-video app Snapchat, Instagram direct messages, chat app Discord and social app Yubo to meet people and share their violent plans with acquaintances. In Buffalo, the suspect also used the video streaming platform Twitch to publicize his deadly attack.