Ominous social media posts could have alerted the authorities but sifting through possible threats is an enormous task, experts say
The mother of the 18-year-old gunman who shot dead 19 young children and two teachers and wounded many others in an elementary school in the small town of Uvalde, Texas, this week has said: “Forgive me, forgive my son.”
Adriana Martinez looked distraught as she wept in her car, telling CNN affiliate Televisa, in Spanish: “I have no words to say, I don’t know what he was thinking.”
