A man who was arrested at a New Mexico compound where 11 children were found abused was training kids to commit school shootings, court documents revealed. Authorities raided the compound on Friday after a monthslong search investigating a 3-year-old boy's disappearance led them to the property, where the children were discovered hungry and living in squalor. On Monday, a child's remains were found on the property, but authorities were working on a positive identification.