And more than a dozen others injured after the school bus crashed into a tree. This happened in chattanooga. Dave Courvoisier that driver. Johnthony walker is facing several charges. Including vehicular homicide and reckless driving. The children on the bus all from an elementary school. The oldest in fifth grade. The youngest in kindergarten. Pictures from the scene show the bus wrapped around a tree. Crushing it. certainly speed is being investigated very very strongly as a factor in this crash. This has been a great tragedy for us. We have suffered a great loss today. Everyone in our community, this has been one of the wor d weve had in hamilton county. Dave Courvoisier once again. We want to report that the bus driver has been arrested tonight. Denise Valdez and it appears the shootings of 4 Different Police officers nationwide. Are not connected. Its been labeled as bloody sunday. One officer shot and killed in texas. Two more shot and wounded in missouri and another officer hospi