Share this postUvalde gunman displayed warning signs on social media app Yubonews.danpatterson.comCopy linkFacebookEmailNoteOtherDiscover more from Dan Patterson | NewsTechnology reporting at the intersection of politics, business, and culture. SubscribeContinue readingSign in Uvalde gunman displayed warning signs on social media app YuboThe 18-year-old shooter reportedly had a history of harassing and threatening teenage girls online, particularly on the social media app Yubo.Jun 2, 2022Share this postUvalde gunman displayed warning signs on social media app Yubonews.danpatterson.comCopy linkFacebookEmailNoteOtherShare