According to users, a gunman from Uvalde threatened school rapes and shootings on the social media app Yubo during the weeks leading up to the massacre.
But those users, all teenagers, told CNN they didn’t take it seriously until they saw the news that Ramos had shot 19 children and two adults at an elementary school in Uvalde, Texas, this week. Three users said they witnessed Ramos threatening to commit sexual violence or school shootings on Yubo, an app used by …