 Correspondent Rich Thomason. The police chief for schools in Uvalde, Texas, failed to identify an active shooting, did not follow his training, and made critical decisions that slowed the law enforcement response to stop a killer who was hunting victims and ultimately killed 21 people at Robb Elementary. Pete Arradondo was arrested and briefly booked into jail before he was released Thursday night on 10 state jail felony counts of abandoning or endangering a child.